JP6679257B2 - Adhesive parts crimping jig device - Google Patents

Description

  The present invention relates to an adhesive component crimping jig device for crimping an adhesive component that is adhered to a member to be crimped.

  For example, there is an adhesive component such as an automobile component that is fixed by being pressure-bonded to a member to be pressure-bonded. An example of such an adhesive component is a retainer that supports a sensor attached to a bumper of an automobile (see, for example, Patent Document 1). The details are as follows.

  In some automobiles, a sensor for detecting an obstacle based on a distance between the vehicle and an obstacle around the vehicle is attached to a bumper which is a member to be pressure-bonded. Such an obstacle detecting sensor is called a clearance sonar or the like, and is attached to the inside of the bumper so as to face the outside from an attachment hole formed in the bumper as a hole for attaching components, for example. The sensor is attached while being supported by a retainer fixed to the inner surface of the bumper.

  The retainer is adhesively fixed to the inner surface of the bumper with an adhesive member such as double-sided tape. When the retainer is fixed to the bumper, the retainer is pressed against the bumper and pressure-bonded in order to ensure the adhesive action of the adhesive member. An ultrasonic sensor is generally used as this type of sensor, and the ultrasonic wave emitting surface of the sensor is flush with the outer surface of the bumper through a mounting hole formed in the bumper, for example. It is provided so that.

JP2012-86583A

  Regarding the above-mentioned obstacle detection sensor, from the viewpoint of ensuring detection accuracy based on the directional characteristics of ultrasonic waves and preventing deterioration of the appearance of the sensor mounting part in the appearance of the bumper, The mounting accuracy of the sensor is important. The sensor mounting accuracy includes accuracy in a planar mounting position along a surface portion where the mounting hole of the bumper opens, accuracy in a mounting angle around a predetermined axis perpendicular to the surface portion where the mounting hole opens, and the like. On the other hand, the sensor is integrally assembled with the retainer that is bonded to the bumper. Therefore, the mounting accuracy of the retainer, which is an adhesive component, to the bumper is important for ensuring the mounting accuracy of the sensor to the bumper.

  Further, in the installation of the retainer to the bumper, conventionally, in a dedicated facility for crimping the retainer to the bumper, the retainer that is an adhesive component and the bumper that is the component to be crimped are set at predetermined positions, Positioning and pressure bonding of components are mechanically performed by a mechanical device such as a robot. For this reason, when attaching an adhesive component such as a retainer, dedicated equipment and jigs are required in accordance with the shape and attachment position of the component that differs depending on the vehicle model and the like. Therefore, according to the conventional technique, it is necessary to prepare equipment and jigs for each vehicle type and switch the equipments and jigs according to the vehicle type and the like, which is not versatile.

  In view of the above problems, it is an object of the present invention to provide an adhesive component crimping jig device capable of accurately attaching an adhesive component to a member to be crimped and achieving high versatility.

An adhesive component crimping jig device according to the present invention is an adhesive component crimping jig device for crimping an adhesive component to be adhered to a member to be crimped, which is used to crimp the adhesive component to the member to be crimped. An apparatus main body having a pressing surface that comes into pressure contact with an adhesive component, and a pressure- bonded surface on which the adhesive component of the apparatus main body is pressure- bonded to the pressure- bonded member by being inserted into a hole formed in the pressure-bonded member. An insertion support portion that restricts movement in a direction along the direction, a movable base portion that is movable with respect to the device body portion in a direction along an insertion direction of the insertion support portion into the hole portion, and the device body portion. An engaging portion that engages with an engaged portion provided on the pressure-bonded member, and an engaging portion that urges the movable base portion in a direction of pressing the adhesive component. By engaging with the engaged portion, A rotation restricting portion for restricting the insertion supporting portion the axial line of rotation about the said along the insertion direction of the device body portion, in which comprises a.

  Further, in the adhesive component crimping jig device according to another aspect of the present invention, the movable base portion is provided with a grip portion.

Further, in the adhesive component crimping jig device according to another aspect of the present invention, the device body is
A main body base portion that is supported with respect to the movable base portion, and a movable pressing portion that is a portion that has the pressing surface and that is movable with respect to the main body base portion in a direction along the insertion direction. is there.

  Further, in the adhesive component crimping jig device according to another aspect of the present invention, the movable base portion has a pressing urging portion that urges the movable pressing portion in the direction in which the adhesive component is pressed by the pressing surface. It is a thing.

  Further, in the adhesive component crimping jig device according to another aspect of the present invention, the urging portion is provided with the device main body portion and the device main body portion by the relative movement of the device main body portion and the movable base portion in a direction along the insertion direction. The movable base and the movable base are configured by an elastic member that increases a biasing force as they approach each other, and the device main body and the movable base are close to each other in a predetermined positional relationship in a direction along the insertion direction. It further comprises a sensor for detecting.

  Further, in an adhesive component crimping jig device according to another aspect of the present invention, the device main body portion is disposed around the insertion support portion as a portion forming the pressing surface, and each of them independently swings. It has a plurality of pressing pieces that are movably supported.

  Further, in the adhesive component crimping jig device according to another aspect of the present invention, the insertion supporting portion is a columnar portion, and has a tapered shape portion whose diameter is gradually reduced from the protruding base end side to the protruding tip side. It is a thing.

  In the adhesive component crimping jig device according to another aspect of the present invention, the insertion support portion is elastically supported with respect to the movable base portion so as to be movable in a direction along the insertion direction.

  In addition, in the adhesive component crimping jig device according to another aspect of the present invention, the rotation restricting portions are symmetrically provided at two positions with respect to the position of the axis line.

  ADVANTAGE OF THE INVENTION According to this invention, an adhesive component can be attached to a member to be pressure-bonded accurately, and high versatility can be obtained.

It is a figure which shows schematic structure of the adhesive components crimping jig apparatus which concerns on one Embodiment of this invention. It is a figure which shows the retainer which is an adhesive component which concerns on one Embodiment of this invention. It is a figure which shows the attachment structure of the adhesive component which concerns on one Embodiment of this invention. It is a perspective view showing an adhesion parts pressure bonding jig device concerning one embodiment of the present invention. 1 is a front view showing an adhesive component crimping jig device according to an embodiment of the present invention. It is a partially omitted side view of an adhesive component crimping jig device according to an embodiment of the present invention. It is a bottom view which shows the adhesive component crimping jig apparatus which concerns on one Embodiment of this invention. 1 is a vertical cross-sectional view showing an adhesive component crimping jig device according to an embodiment of the present invention. It is a partially omitted perspective view of an adhesive component crimping jig device according to an embodiment of the present invention. FIG. 3 is a partially enlarged perspective view of the adhesive component crimping jig device according to the embodiment of the present invention. It is a figure which shows the movable press part of the adhesive component crimping jig apparatus which concerns on one Embodiment of this invention. It is explanatory drawing about the diameter expansion cap of the adhesive component crimping jig apparatus which concerns on one Embodiment of this invention. It is a figure which shows the crimping inspection system provided with the adhesive component crimping jig apparatus which concerns on one Embodiment of this invention. It is a figure which shows the mounting state of the adhesive component of the adhesive component crimping jig apparatus which concerns on one Embodiment of this invention. It is a figure which shows the operation state of the adhesive components crimping jig apparatus which concerns on one Embodiment of this invention.

  The present invention relates to an adhesive component crimping jig device (hereinafter simply referred to as “crimping jig device”) for crimping an adhesive component to a member to be crimped (work) having a hole for mounting a component, When the crimping jig device is positioned with respect to the work, the hole part of the work is used and the engaged part provided on the work is used to improve the mounting accuracy of the adhesive parts while achieving high versatility. Is what you are trying to do. Hereinafter, embodiments of the present invention will be described.

  As shown in FIGS. 1 to 3, in an embodiment of the present invention described below, the adhesive component crimped by a crimping jig device 1 is a retainer 4 supporting a sensor 3 attached to a bumper 2 of an automobile. is there.

  The bumper 2 is a front bumper provided on the front side of the vehicle or a rear bumper provided on the rear side of the vehicle. The bumper 2 has a left-right direction of the vehicle as a longitudinal direction and corner portions on both left and right sides. The bumper 2 is a resin plate member.

  The sensor 3 is called a clearance sonar or the like, and is for detecting an obstacle based on the distance between the vehicle and the obstacles around the vehicle. The sensor 3 is attached to the inside of the bumper 2 so as to face the outside from an attachment hole 2a formed as a hole for attaching a component in the bumper 2. The sensor 3 is attached while being supported by a retainer 4 fixed to the inner surface 2b of the bumper 2.

  The sensors 3 are provided at a plurality of locations in the longitudinal direction of the bumper 2. Therefore, in the bumper 2, the mounting holes 2a are provided at a plurality of positions corresponding to the mounting positions of the sensor 3. The mounting hole 2a is formed by, for example, a drilling device having a drill, a punch or the like.

  The sensor 3 is an ultrasonic sensor. As shown in FIG. 3A, the sensor 3 includes a sensor main body 3a having a substantially rectangular parallelepiped outer shape, and a detection portion that protrudes in a cylindrical shape from one surface (lower side in the drawing) of the sensor main body 3a. 3b and a connecting portion 3c protruding from a side surface portion on one side (right side in the drawing) of the sensor main body portion 3a. In the sensor 3, the tip end surface of the detecting portion 3b on the protruding side serves as a circular microphone surface 3d which is an ultrasonic wave emitting surface. The detecting portion 3b has a reduced diameter portion 3e at the protruding tip portion. Further, the connection portion 3c is provided with a connection terminal of a cable connected to the sensor 3 so as to face the opening of the connection portion 3c on the protruding tip side.

  The retainer 4 is adhesively fixed to the inner side surface 2b of the bumper 2 with a double-sided tape 5 as an adhesive member. That is, the inner side surface 2b of the bumper 2 serves as a pressure-bonded surface to which the retainer 4 is pressure-bonded. At the time of fixing the retainer 4 to the bumper 2, in order to ensure the adhesive action of the double-sided tape 5, the adhesive portion of the retainer 4 by the double-sided tape 5 is pressed and pressed. The crimping and fixing of the retainer 4 to the inner surface 2b of the bumper 2 is performed by using the crimping jig device 1.

  The retainer 4 is a component made of a resin material such as polybutyne terephthalate. As shown in FIGS. 2A to 2D, the retainer 4 includes a substantially cylindrical assembly main body 4a and one end (lower side in FIG. 2B) of the assembly main body 4a. And a substantially rectangular plate-shaped sticking plate portion 4b formed in a brim. In the retainer 4, the plate surface of the attachment plate portion 4b opposite to the assembly body portion 4a side is used as the attachment surface 4c for the inner side surface 2b of the bumper 2. In the retainer 4, the sticking surface 4c side (the lower side in FIG. 2B) of the sticking plate portion 4b is the lower side, and the opposite side is the protruding side of the assembly main body portion 4a (FIG. 2B). Is the upper side.

  The assembling main body portion 4a is a substantially tubular portion that is open at both ends in the cylinder axis direction, is located in the central portion with respect to the substantially rectangular plate-shaped attaching plate portion 4b, and has an upper surface 4h of the attaching plate portion 4b. A support hole portion 4d for supporting the sensor 3 is formed in the central portion of the retainer 4 in such a manner as to protrude from the retainer 4 in a substantially cylindrical shape. The support hole portion 4d is a through hole portion that penetrates vertically. That is, the substantially cylindrical assembly main body portion 4a has the lower side opened to the attaching surface 4c side and the protruding tip side from the upper attaching plate portion 4b.

  The attaching plate portion 4b is a portion attached to the inner side surface 2b of the bumper 2 with the double-sided tape 5, and is elastically deformed according to the shape of the inner side surface 2b of the bumper 2. Slit-shaped notches 4e are formed at a plurality of locations on the attachment plate portion 4b from the outer edge side toward the center portion. The part on the outer peripheral side of the attachment plate part 4b is divided into a plurality of pieces by the plurality of notches 4e. As a result, the sticking plate portion 4b follows the shape of the inner side surface 2b of the bumper 2 and is easily elastically deformed.

  When adhering the retainer 4 to the bumper 2, the double-sided tape 5 is attached to substantially the entire attachment surface 4c of the retainer 4. Specifically, the double-sided tape 5 is, for example, as shown by a hatched portion in FIG. 2D, a portion excluding the four corner portions of the attachment plate portion 4b and the opening portion of the support hole portion 4d on the attachment surface 4c. Affixed to. That is, the double-sided tape 5 is attached to the attaching surface 4c in a substantially octagonal shape having the hole 5a corresponding to the opening of the support hole 4d in the center. However, the part to which the double-sided tape 5 is attached on the attaching surface 4c is not particularly limited. The double-sided tape 5 may be attached to a plurality of locations on the attachment surface 4c, for example.

  The sensor 3 is integrally assembled to the retainer 4 that is adhesively fixed to the bumper 2 as described above. The assembly structure of the retainer 4 and the sensor 3 will be described.

  The retainer 4 is provided with a pair of holding piece portions 4f projecting upward from the upper end of the substantially cylindrical assembly body portion 4a. The holding piece portion 4f is a protruding piece portion having a substantially rectangular plate-shaped outer shape. The pair of holding piece portions 4f are configured so that the plate surface is along the circumference of the substantially cylindrical assembly main body portion 4a so that the plate surface is along a set of side portions (upper and lower side portions in FIG. 2A). Regarding the direction, they are provided at positions facing each other in the radial direction of the assembly body 4a. Therefore, in the pair of holding piece portions 4f, the opening portions of the support hole portions 4d are located between each other on the upper side of the assembly main body portion 4a, and the plate surfaces on one side face each other.

  From the upper side of the retainer 4, the cylindrical detection portion 3b of the sensor 3 is inserted into the support hole portion 4d, and the pair of holding pieces 4f sandwiches the sensor main body portion 3a of the sensor 3, The sensor 3 is assembled (see FIG. 3B). The distance between the pair of holding piece portions 4f is substantially the same as the width dimension of the sensor body 3a having a substantially rectangular parallelepiped shape in the direction of being held by the pair of holding piece portions 4f. The surface is in contact with the side surfaces 3f on both sides of the sensor body 3a in the sandwiched direction.

  The retaining piece 4f of the retainer 4 is formed with an engagement hole 4g which is a substantially rectangular hole. On the other hand, the side surface 3f of the sensor 3 is formed with an engagement protrusion 3g that engages with the engagement hole 4g. The engagement protrusion 3g has an inclined surface 3h. The inclined surface 3h is inclined so as to gradually increase the protruding height of the engaging projection 3g from the side surface 3f from the lower side (the protruding side of the detecting portion 3b from the sensor body 3a) to the upper side which is the opposite side thereof. ing.

  In such a configuration, the sensor body 3a is positioned between the pair of holding piece portions 4f, and the sensor 3 is pushed into the retainer 4 so that the detection portion 3b is inserted into the support hole portion 4d. Due to the inclined surface 3h of the fitting protrusion 3g, the space between the pair of holding piece portions 4f temporarily expands due to the elastic deformation of the holding piece portion 4f, and the engagement protrusion 3g automatically engages with the engagement hole 4g in a snap fit manner. To meet. In this way, the sensor 3 is assembled to the retainer 4.

  The sensor 3 is provided so that the microphone surface 3d is substantially flush with the outer surface 2c of the bumper through the mounting hole 2a of the bumper 2. Specifically, in the state where the sensor 3 is assembled to the retainer 4, the reduced diameter portion 3e at the lower end of the detection portion 3b is projected from the attachment surface 4c of the retainer 4. The reduced diameter portion 3e, which is a protruding portion from the attachment surface 4c, is located in the mounting hole 2a of the bumper 2 in a state where the retainer 4 is adhered to the bumper 2, and the microphone surface 3d is substantially the same as the outer surface 2c of the bumper 2. They are flush with each other (see FIG. 3 (b)).

  In the above-described configuration, the crimping jig device 1 according to the present embodiment includes the retainer 4 as a bonding component to be bonded to the bumper 2 as a workpiece having the mounting hole 2a for mounting the sensor 3. Used to crimp to 2.

  As shown in FIG. 1, the crimping jig device 1 includes a device main body portion 11 having a pressing surface 10 that presses the retainer 4, a positioning pin 12 as an insertion support portion that is inserted into the mounting hole 2 a of the bumper 2, A movable base 13 movably provided with respect to the apparatus main body 11, an urging spring 14 as an urging portion interposed between the apparatus main body 11 and the movable base 13, and an extension from the apparatus main body 11. And a pair of engagement support legs 15 for

  The crimping jig device 1 also includes a grip portion 16 that is gripped by the hand 6 of the operator. The grip 16 is provided integrally with the movable base 13. In the crimping jig device 1, the grip portion 16 is on the side opposite to the side on which the pressing surface 10 is provided, and the direction along the pressing direction of the retainer 4 by the crimping jig device 1 (the vertical direction in FIG. 1) is the longitudinal direction. It is provided as a tubular or rod-shaped grip portion. Thus, the crimping jig device 1 according to the present embodiment is configured as a hand tool that is manually operated while being held by the hand 6 of the operator. In the following description, in the crimping jig device 1, the pressing surface 10 side (lower side in FIG. 1), which is the pressing side, is the lower side of the device main body 11, and the opposite pressing side (where the grip 16 is provided) The upper side in FIG. 1 is the upper side.

  As shown in FIG. 1, on the lower side of the device main body 11 of the crimping jig device 1, the retainer 4 has a position in which the positioning pin 12 penetrates the support hole 4d and the sticking surface 4c faces downward. Retained. Further, the retainer 4 is held with respect to the apparatus main body 11 in a predetermined direction (rotational angle position) with respect to the rotation direction with the central axis of the assembly main body 4a as the rotation axis. As described above, the retainer 4 has the support hole portion 4d as a through hole portion through which the positioning pin 12 penetrates. Then, the crimping jig device 1 holding the retainer 4 is manually operated by the grip portion 16 and is pressed downward while the positioning pin 12 is inserted into the mounting hole 2a, so that the biasing force of the biasing spring 14 is exerted. Is applied, the retainer 4 is pressed by the pressing surface 10, and the retainer 4 adhered by the double-sided tape 5 is pressure-bonded to the inner surface 2b of the bumper 2.

  Here, the pressing surface 10 presses the retainer 4 while being in pressure contact with the upper surface 4h of the attaching plate portion 4b of the retainer 4. Further, in order to position the device main body 11 holding the retainer 4 with respect to the bumper 2, in addition to inserting the positioning pin 12 into the mounting hole 2a, engagement with the engaged portion 2d formed on the inner side surface 2b of the bumper 2 is performed. Engagement of mating support legs 15 is used. In addition, in FIG. 1, the attachment position of the retainer 4 on the inner side surface 2b of the bumper 2 is indicated by a chain double-dashed line 4A. Further, in the present embodiment, the engaged portion 2d is provided at one position at a predetermined distance from the mounting hole 2a and in a predetermined direction.

  Hereinafter, the configuration of each part of the crimping jig device 1 of the present embodiment will be described in detail with reference to FIGS. 4 to 12. Note that FIG. 8 corresponds to a cross-sectional view taken along the line AA in FIG.

  As described above, the crimping jig device 1 has the positioning pin 12 on the lower side and the grip portion 16 on the upper side. The positioning pin 12 and the grip portion 16 have central axes aligned with each other. In the crimping jig device 1, the central axis lines of the positioning pin 12 and the grip portion 16 which coincide with each other are the central axis lines of the device itself. The central axis direction of the crimping jig device 1 is the direction along the vertical direction and the direction along which the positioning pin 12 is inserted into the mounting hole 2a of the bumper 2. Further, the crimping jig device 1 is configured substantially symmetrically in front view (see FIG. 5) and side view (see FIG. 6).

  The device main body 11 has a pressing surface 10 that presses the retainer 4 to press the retainer 4 onto the bumper 2. The apparatus main body 11 is a portion having a main body base 21 supported by the movable base 13 and the pressing surface 10 and moves in a direction along the insertion direction of the positioning pin 12 (vertical direction) with respect to the main body base 21. The movable pressing portion 22 is provided so as to be capable.

  The main body base portion 21 has a base portion 23 having a substantially octagonal prism-shaped outer shape, and a support plate portion 24 provided on the base portion 23 and having a substantially rectangular plate-shaped outer shape. The base portion 23 makes the center axis line of the outer shape of the substantially octagonal prism shape coincide with the center axis line of the crimping jig device 1 (hereinafter referred to as “device center axis line O1”). The support plate portion 24 is provided so that the plate surface extends along a horizontal plane (a surface perpendicular to the vertical direction) and the longitudinal direction extends along the front-rear direction.

  The support plate portion 24 has protruding portions 24 a protruding from the base portion 23 in an eaves shape at both ends in the longitudinal direction. The support plate portion 24 has an upper surface thereof as a main body support surface 21a along a horizontal plane. Further, the projecting portions 24a on both sides in the longitudinal direction of the support plate portion 24 have lower surfaces 24b along the horizontal plane. In the crimping jig device 1, the direction along which the longitudinal direction of the support plate portion 24 is (the left-right direction in FIG. 6) is the front-rear direction, and the direction orthogonal to the front-rear direction when viewed from the central axis direction of the crimping jig device 1 (see FIG. The left-right direction in 5) is the left-right direction.

  Further, a central hole portion 21b is provided in the central portion of the main body base portion 21 so as to penetrate the positioning pin 12 so as to be relatively movable in the vertical direction (see FIG. 8). The central hole 21b is a circular hole that opens to the main body support surface 21a, which is the upper surface of the main body base 21, and also to the lower side of the main body base 21, and vertically penetrates the base 23 and the support plate 24. Is.

  The movable pressing portion 22 is a pressing mechanism portion that is independently movable with respect to the main body base 21 in the vertical direction, and is provided at eight positions at substantially equal angular intervals in the circumferential direction centered on the position of the device central axis. (See FIG. 7). Each movable pressing portion 22 is provided so as to be housed in a housing recess 21c formed in the lower portion of the main body base 21.

  The storage recesses 21c are provided on each of the eight side surface portions of the substantially octagonal column-shaped base portion 23 around the central hole portion 21b. The storage concave portion 21c is a lower portion of the side surface portion of the base portion 23, and is a notch-shaped concave portion that is open to the sides and the lower side and is substantially in the shape of a rectangular parallelepiped at the position of the center portion in the width direction of the side surface portion. Is formed as a part.

  The movable pressing portion 22 has the lower end surface as the pressing surface 10. That is, the movable pressing portion 22 is provided so as to be vertically movable relative to the main body base portion 21 with the pressing surface 10 facing downward. The movable pressing portion 22 is provided in a state of being supported by a support spring 25 so as to be housed in the housing recess 21c. The support spring 25 is a coil spring, and is provided in a state in which a support shaft 26 extending upward from the movable pressing portion 22 is penetrated.

  The support shaft 26 has a vertical direction as an axial direction, and is provided so as to be movable relative to the main body base 21 in the vertical direction integrally with the movable pressing portion 22. The support shaft 26 is provided so as to vertically pass through the body base 21. For this reason, the main body base 21 is formed with a support hole portion 21d through which the support shaft 26 penetrates. The support hole 21d has an upper side opened to the main body support surface 21a and a lower side opened to the upper surface 21e of the storage recess 21c. The upper surface 21e of the storage recess 21c is a substantially horizontal surface that faces downward. Regarding the six movable pressing portions 22 located on each of the left and right sides, the upper portion of the support hole portion 21d through which the support shaft 26 penetrates has a substantially semicircular notch shape with the left and right outer sides being open sides. (See FIG. 9).

  The diameter of the upper portion of the support hole portion 21d is larger than that of the lower portion thereof, and a step surface 21f extending along a horizontal plane is formed at an intermediate portion in the vertical direction of the support hole portion 21d. The support hole portion 21d penetrates the support shaft 26 and supports the lower side of the support spring 25 on the step surface 21f.

  On the other hand, at the upper end of the support shaft 26, a pressed portion 27 that is a diameter-expanded portion of the support shaft 26 is provided. The pressed portion 27 forms a spring receiving portion that receives the support spring 25 at the upper end portion of the support shaft 26. That is, the pressed portion 27 supports the upper side of the support spring 25 by its lower surface. In the present embodiment, the pressed portion 27 is composed of two nut members screwed onto the upper end of the support shaft 26.

  As described above, the support spring 25 is interposed between the stepped surface 21 f of the main body base 21 and the pressed portion 27 in a state where the upper portion of the support shaft 26 is penetrated. That is, the lower end of the support spring 25 is in contact with the step surface 21f, and the upper end thereof is in contact with the lower surface of the pressed portion 27. The support spring 25 supports the pressed portion 27 at a predetermined height position above the main body base portion 21 so that the movable pressing portion 22 connected to the pressed portion 27 via the support shaft 26 is moved. The movable pressing portion 22 is supported so as to be located inside the storage recess 21c.

  With such a configuration, the pressed portion 27 is pressed from the upper side, for example, to receive a downward force, so that the pressed portion 27, the support shaft 26, and the movable pressing portion 22 cause the biasing force of the support spring 25. And moves integrally relative to the main body base 21 downward against the force. That is, the pressing surface 10 of the movable pressing portion 22 moves downward relative to the main body base portion 21. Then, when the downward force on the pressed portion 27 is released, the pressed portion 27 is pushed upward by the urging force of the support spring 25, and the pressed portion 27, the support shaft 26, and the movable pressing portion 22 are integrated. First, the movable pressing portion 22 moves upward relative to the main body base portion 21, and is housed in the storage recess 21c.

  In this way, the movable pressing portion 22 is provided so as to project and retract from the lower surface side of the base portion 23 with respect to the main body base portion 21 (see arrow A1 in FIG. 8). The movable pressing portion 22 is provided so that the pressing surface 10 is located slightly below the lower end surface 21g of the main body base 21 in the natural state of the support spring 25.

  The configuration of the movable pressing portion 22 will be described. As shown in FIGS. 11A and 11B, the movable pressing portion 22 includes a swing pressing body 31 that is a portion having the pressing surface 10, and a push body support that swingably supports the swing pressing body 31. And a part 32.

  The oscillating pressing body 31 includes a pressing plate portion 33 having a plate surface on one side as a pressing surface 10 and a support plate erected on an upper surface 33a which is a plate surface opposite to the pressing surface 10 side of the pressing plate portion 33. And a portion 34.

  The pressing plate portion 33 is a rectangular plate-shaped portion. The pressing plate portion 33 has a substantially wedge shape as a whole with the plate thickness gradually decreasing from one side (left side in FIG. 11A) to the other side (right side). Therefore, when the upper surface 33a of the pressing plate portion 33 is along the horizontal plane, the pressing surface 10 which is the lower surface of the pressing plate portion 33 is an inclined surface slightly inclined (for example, about 5 °) with respect to the horizontal plane.

  The support plate portion 34 is a rectangular projecting piece portion provided at the center of the pressing plate portion 33 in the width direction (left-right direction in FIG. 11B). The support plate portion 34 is erected vertically to the upper surface 33 a of the pressing plate portion 33. As shown in FIG. 11B, in the rear view of the movable pressing portion 22, the pressing plate portion 33 and the support plate portion 34 have a substantially inverted “T” shape.

  The pressing body support portion 32 has a block-shaped base portion 35 and a pair of support piece portions 36 projecting downward from the base portion 35.

  The base portion 35 has a substantially rectangular parallelepiped outer shape that is large enough to fit in the storage recess 21c, and has an upper surface 35a and a lower surface 35b. The support shaft 26 is erected on the upper surface 35 a of the base portion 35.

  The support piece portion 36 is a rectangular plate-shaped projecting piece portion that is vertically provided on the lower surface 35 b of the base portion 35. The pair of support piece portions 36 are provided in parallel to each other with a predetermined gap therebetween.

  The pressing body supporting portion 32 is a pressing plate portion with the supporting plate portion 34 of the rocking pressing body 31 interposed between the pair of supporting piece portions 36 in the same thickness direction as the supporting piece portion 36. The swing pressing body 31 is supported in a direction in which 33 is on the lower side. The oscillating pressing body 31 is rotatably supported by the pressing body supporting portion 32 by a shaft supporting portion 37 penetrating the supporting plate portion 34 and provided between a pair of supporting piece portions 36. The axial direction of the shaft support 37 is orthogonal to the direction in which the plate thickness of the pressing plate 33 changes (horizontal direction in FIG. 11A) on the plane projected.

  In the state where the rocking pressing body 31 is supported by the pressing body supporting portion 32, there is a gap between the upper surface 33a of the pressing plate portion 33 and the lower end surface 36a of the supporting piece portion 36. This allows the swing pressing body 31 to rotate. That is, the swing pressing body 31 has a range in which the upper surface 33a of the pressing plate portion 33 comes into contact with the lower end of the support piece portion 36 in one and the other of the rotation directions of the shaft support portion 37 as a rotation range, and thus the seesaw of the seesaw. It is supported so as to swing (see arrow B1 in FIG. 11A). With respect to the support mode for the pressing body supporting portion 32, the rocking pressing body 31 uses its own weight so that the upper surface 33a of the pressing plate portion 33 is aligned with the horizontal plane, that is, the pressing surface 10 is slightly inclined with respect to the horizontal plane. It is configured.

  In the movable pressing portion 22 configured as described above, the axial direction of the shaft support portion 37 that supports the swing pressing body 31 is a circle centered on the position of the device central axis O1 at each of the eight arranged positions. Is provided so as to be tangential to. In other words, when viewed from the device center axis O1 direction, each movable pressing portion 22 is provided so that the axial direction of the shaft support portion 37 is orthogonal to the radial direction of the circumference centered on the position of the device center axis O1. .

  In addition, each movable pressing portion 22 extends along the radial direction of the circumference centered on the position of the device center axis O1, and the direction in which the thickness of the pressing plate portion 33 changes (left-right direction in FIG. 11A). ), The side where the plate thickness is relatively thick is the center side (the side where the plate thickness is relatively thin is the outer side in the radial direction). Therefore, in the crimping jig device 1 in the natural state, the pressing surface 10 of each movable pressing portion 22 is slightly inclined with respect to the position of the device central axis O1 from the outside to the center side. For this reason, the pair of pressing surfaces 10 facing each other around the position of the device center axis O1 are in a substantially “V” shape. As described above, in the crimping jig device 1 of the present embodiment, the eight pressing surfaces 10 are radially arranged around the position of the device central axis O1 in the bottom view of the crimping jig device 1 (see FIG. 7). It is arranged.

  As described above, in the crimping jig device 1 of the present embodiment, the device main body 11 is arranged around the positioning pin 12 as a portion forming the pressing surface 10, and each is independently swingable. It has eight pressing pieces supported. That is, the pressing piece portion is the pressing plate portion 33 of the swinging pressing body 31 which is swingably supported by the pressing body supporting portion 32 in the movable pressing portion 22. In addition, in the present embodiment, as the plurality of pressing piece portions that form the pressing surface 10, there are eight pressing plate portions 33 that are radially arranged, but the number, shape, arrangement mode, etc. of the pressing piece portions are not particularly limited. Not something.

  The movable base portion 13 is a portion provided so as to be movable with respect to the apparatus main body portion 11 in a direction along the insertion direction of the positioning pin 12 into the mounting hole 2a (vertical direction). The movable base 13 is a block-shaped portion having a substantially rectangular parallelepiped outer shape whose longitudinal direction is the front-rear direction. The movable base portion 13 has substantially the same dimension as the support plate portion 24 of the apparatus main body portion 11 in the longitudinal direction (see FIG. 6). The movable base 13 has an upper surface 13a and a lower surface 13b that extend along a horizontal plane.

  Supporting protrusions 38 are provided on the left and right lower end edges of the movable base 13. The support protrusion piece 38 is a plate-shaped portion that horizontally protrudes like an eaves from the lower end edges of the left and right side surfaces 13 c of the movable base 13. The support protrusion 38 is provided at an intermediate portion of the movable base 13 excluding both ends in the longitudinal direction, and has a substantially truncated isosceles triangle shape with the movable base 13 side as the bottom side in a plan view.

  The movable base 13 is supported above the apparatus body 11 by an urging support portion 40 including an urging spring 14 so as to be vertically movable with respect to the apparatus body 11. The biasing support portions 40 are provided at two front and rear positions between the apparatus main body portion 11 and the movable base portion 13. Specifically, the urging support portion 40 is installed in the up-down direction between the projecting portions 24a at the front and rear end portions of the support plate portion 24 constituting the apparatus main body portion 11 and the front and rear end portions of the movable base portion 13. It is provided in the form.

  The urging support portion 40 includes a guide support shaft 41 that is provided between the projecting portion 24 a of the support plate portion 24 and the movable base portion 13, and a guide support shaft 41 that penetrates the guide supporting shaft 41 and between the projecting portion 24 a and the movable base portion 13. And an urging spring 14 interposed between them. The urging support portion 40 guides the relative vertical movement of the movable base portion 13 with respect to the apparatus main body portion 11 by the guide support shaft 41. In addition, the urging support portion 40 urges the movable base portion 13 and the apparatus body portion 11 in the vertical direction by the urging spring 14 so as to separate them from each other. In this way, the biasing support portion 40 has a function of biasing the respective parts with respect to the relative up and down movements of the apparatus body 11 and the movable base 13 in the vertical direction.

  The guide support shaft 41 is a rod-shaped member whose vertical direction is the axial direction, is provided in a fixed state with respect to the support plate portion 24, and is provided so as to move relative to the movable base portion 13. Has been. Therefore, the guide support shaft 41 moves relative to the movable base 13 in the up-down direction integrally with the apparatus body 11.

  The guide support shaft 41 is fixed to the support plate portion 24 with its lower end portion penetrating the protruding portion 24a. The lower end portion of the guide support shaft 41 is fixed to the support plate portion 24 by being screwed into a screw hole 24c formed in the protruding portion 24a in the vertical direction. Two nuts 42 are screwed into the downward protruding portion of the guide support shaft 41 from the protruding portion 24a.

  The guide support shaft 41 is provided so as to be movable relative to the movable base 13 in a state where the upper portion thereof penetrates the movable base 13. The upper portion of the guide support shaft 41 penetrates a guide hole 13d provided in the movable base 13. The guide hole portion 13d is a through hole portion in the up-down direction that is opened in the upper surface 13a and the lower surface 13b of the movable base 13. The guide hole 13d is composed of a linear bush 43 as a bearing member. The bearing member forming the guide hole portion 13d may be, for example, a linear motion bearing or the like. Further, the guide hole portion 13d may be directly formed in the structure of the movable base portion 13.

  Two nuts 44 are screwed onto the upper end of the guide support shaft 41 protruding upward from the movable base 13. The nut 44 serves as an enlarged diameter portion with respect to the guide support shaft 41, and serves as a locking portion that restricts the guide support shaft 41 from coming off from the guide hole portion 13d by contacting the upper surface 13a of the movable base portion 13. A receiving member such as a washer is provided at the contact portion of the nut 44 on the upper surface 13a.

  The urging spring 14 is interposed between the device main body 11 and the movable base 13 in the crimping jig device 1 to move the device main body 11 in the direction (downward direction) for pressing the retainer 4 against the movable base 13. A biasing unit that biases is configured. The biasing spring 14 is a coil spring, and is provided in a state in which a portion of the guide support shaft 41 between the device main body portion 11 and the movable base portion 13 penetrates.

  The lower end of the biasing spring 14 is brought into contact with the main body supporting surface 21a, which is the upper surface of the apparatus main body 11, and the upper end thereof is brought into contact with the lower surface 13b of the movable base 13. A spring receiving member such as a washer is provided at the upper and lower ends and the contact portions of the urging springs 14 on the main body supporting surface 21a and the lower surface 13b, respectively.

  The urging spring 14 urges the device body 11 and the movable base 13 in a direction in which they are separated from each other. Therefore, in the natural state of the crimping jig device 1, the movable base portion 13 is urged upward by the urging spring 14 with respect to the device main body portion 11, and the upper surface 13 a is brought into contact with the nut 44 ( (See FIG. 8).

  In this way, the biasing spring 14 provided between the device main body 11 and the movable base 13 applies a biasing force in the vertical direction in which the device main body 11 and the movable base 13 are separated from each other. The urging spring 14 is a coil spring as an elastic member that increases the urging force as the apparatus body 11 and the movable base 13 move closer to each other due to the vertical relative movement of the apparatus body 11 and the movable base 13. .

  Further, in the crimping jig device 1 of the present embodiment, the spring plungers 45 are provided corresponding to the respective movable pressing parts 22 on the side of the movable base 13 which is provided so as to be vertically movable relative to the device main body 11. It is provided. The spring plunger 45 functions as a pressing urging portion that urges the movable pressing portion 22 forming the pressing surface 10 from the upper side in a direction (downward direction) in which the pressing surface 10 presses the retainer 4.

  The spring plunger 45 is formed in a shaft shape as a whole, and is provided at a position corresponding to the upper side of each movable pressing portion 22. Specifically, the spring plunger 45 is provided at a position coaxial with the support shaft 26 extending upward from each movable pressing portion 22. The spring plungers 45 are provided corresponding to each of the eight movable pressing portions 22, and a total of eight spring plungers 45 are provided.

  Of the eight spring plungers 45, the two spring plungers 45 located on the front and rear sides are provided in a state of penetrating the movable base portion 13, and the six spring plungers 45 on the left and right sides are the support projection portions. It is provided so as to penetrate 38. The eight spring plungers 45 are provided at the same height position.

  As shown in FIG. 8, the spring plunger 45 includes a hollow shaft-shaped body 46, a pin 47 that can be retracted from one end in the longitudinal direction of the body 46, and a pin 47 that is attached in a protruding direction from the body 46. And a coil spring 48 as a biasing member for biasing. The spring plunger 45 is provided so that its longitudinal direction extends along the vertical direction and the pin 47 side is the downward side.

  The body 46 is an elongated cylindrical hollow member, has a through hole through which the pin 47 penetrates at one end side (lower end side) in the longitudinal direction, and closes the other end side (upper end side) in the longitudinal direction. . Further, a threaded portion is formed on the entire outer peripheral surface of the body 46. That is, the spring plunger 45 is configured as a screw-shaped member as a whole.

  The pin 47 is a contact member for the pressed portion 27 located below the spring plunger 45, and includes a pin body portion 47a and a disc-shaped expanded portion 47b provided on the base end side of the pin body portion 47a. Have. The pin 47 reciprocates along the longitudinal direction of the body 46 in a state where the expanded diameter portion 47b is located in the internal space of the body 46 and the pin body portion 47a is passed through the through hole on the lower end side of the body 46. To do. By the reciprocating movement of the pin 47, the amount of protrusion of the pin 47 from the lower end side of the body 46 to the lower side of the pin body portion 47a is changed.

  The coil spring 48 is installed in the internal space of the body 46 such that the expansion / contraction direction is the longitudinal direction of the spring plunger 45. The coil spring 48 has one end side (upper end side) abutting on the side wall portion of the upper end portion of the body 46 and the other end side (lower end side) abutting on the enlarged diameter portion 47 b of the pin 47, The pin 47 is biased in the protruding direction from the body 46, that is, downward. Therefore, the pin 47 enters into the body 46 against the urging force of the coil spring 48 by receiving the action of the force in the direction of retracting into the body 46 (upward direction).

  Of the eight spring plungers 45, the two spring plungers 45 provided in the state of penetrating the movable base portion 13 as described above have the screw holes 13e formed in the movable base portion 13 by the screw portions on the outer peripheral surface of the body 46. It is fixed to the movable base 13 by being screwed into. The other six spring plungers 45 use the threaded portion of the outer peripheral surface of the body 46, and are screwed into the screw holes formed in the support projecting piece 38, and the projecting portion to the lower side of the support piece 36. It is supported and fixed to the support protrusion 38 by a nut 49 screwed into the.

  In the configuration in which the spring plunger 45 is provided for each movable pressing portion 22 as described above, the spring plunger 45 acts on the movable pressing portion 22 in the downward direction when the movable base portion 13 approaches the apparatus main body portion 11. To do. That is, the spring plunger 45 uses the upper surface 27a of the pressed portion 27 integrally provided to the movable pressing portion 22 via the support shaft 26 as the pressed surface, and brings the tip of the pin 47 into contact with the upper surface 27a. The downward biasing force of the coil spring 48 acts on the pressed portion 27. When the pressed portion 27 receives a downward force, the pressed portion 27, the support shaft 26, and the movable pressing portion 22 supported by the support spring 25 resist the urging force of the support spring 25 with respect to the main body base portion 21. Move relatively downward. That is, the biasing force of each spring plunger 45 acts as a pressing force on each pressing surface 10.

  The structure for pressing and urging each movable pressing portion 22 is not limited to the spring plunger 45, and other known structures such as a ball plunger and a piston mechanism can be adopted. Further, the portion that presses the pressed portion 27 may not be a portion that moves relative to the movable base portion 13 like the pin 47 of the spring plunger 45, but may be a portion that is integral with the movable base portion 13.

  The grip portion 16 extends upward from the upper surface 13a at the center of the movable base 13 in the front-rear direction. The grip portion 16 is a substantially quadrangular prism-shaped portion having the same dimension in the left-right direction as the width of the movable base portion 13 in the left-right direction and having a chamfered rectangular cross-sectional shape. The upper end portion of the grip portion 16 has a cylindrical base end portion 16a that is an enlarged diameter portion with respect to the main body portion of the grip portion 16. The base end portion 16a has an upper end surface 16b along a horizontal plane. The shape, size, length, etc. of the grip portion 16 are not particularly limited as long as they are gripped by the hand 6 of the operator.

  The positioning pin 12 is a support shaft portion that is inserted into a mounting hole 2a formed in the bumper 2 to restrict movement of the device body 11 in a direction along an inner side surface 2b which is a pressure-bonded surface of the apparatus body 11. . That is, the positioning pin 12 is inserted into the mounting hole 2a of the bumper 2 so that the crimping jig device 1 can move in a direction (lateral direction) perpendicular to the axial direction of the positioning pin 12 with respect to the bumper 2. regulate.

  The positioning pin 12 penetrates the bumper 2 by being inserted into the mounting hole 2a. The positioning pin 12 has a cross-sectional shape corresponding to the hole shape of the mounting hole 2a. Then, the positioning pin 12 makes the outer peripheral surface contact or substantially contacts the inner peripheral surface of the mounting hole 2a in a state of being inserted into the mounting hole 2a. In the present embodiment, the mounting hole 2a has a circular hole shape, and the positioning pin 12 is a rod-shaped (cylindrical) member having a circular cross-sectional shape. Therefore, when the positioning pin 12 is inserted into the mounting hole 2a, the crimping jig device 1 is supported by the bumper 2 so as to be rotatable about the central axis of the positioning pin 12.

  The positioning pin 12 is provided in a state of being inserted into a central hole portion 21b formed in the central portion of the main body base portion 21 that constitutes the apparatus main body portion 11 (see FIG. 8). The positioning pin 12 projects below the pressing surface 10 in the crimping jig device 1 in the natural state. The positioning pin 12 has, for example, a substantially lower half portion projected below the pressing surface 10.

  The positioning pin 12 is a columnar portion and constitutes a protruding portion that protrudes below the pressing surface 10. The positioning pin 12 has a taper that gradually decreases in diameter from the upper side, which is the protruding base end side, to the lower side, which is the protruding tip side. It has a shape portion 12a. In the present embodiment, the positioning pin 12 has a taper-shaped portion 12a in a substantially lower half portion. The outer peripheral surface of the tapered portion 12a is a tapered surface 12b that gradually reduces the outer diameter of the positioning pin 12 from the upper side to the lower side. The taper angle of the tapered surface 12b is, for example, about 1 to 3 °. A substantially upper half portion of the positioning pin 12 is a linear same-diameter portion.

  The positioning pin 12 has a tapered portion 12a continuously below the same diameter portion, and has the same or gradually smaller outer diameter dimension from the upper side to the lower side. Regarding the axial position of the positioning pin 12, the outer diameter of any position of the tapered portion 12a matches the hole diameter of the mounting hole 2a of the bumper 2 into which the positioning pin 12 is inserted. In other words, the size of the hole diameter of the mounting hole 2a of the bumper 2 is within the range from the outer diameter dimension of the upper end of the tapered portion 12a to the outer diameter dimension of the lower end.

  In addition, in the positioning pin 12, the tapered portion may be provided on at least a part. Therefore, the positioning pin 12 may have a tapered shape as a whole, or the positioning pin 12 may be provided with a tapered portion at an intermediate portion in the axial direction. In the latter case, for example, the same diameter portion of the outer diameter of the upper end of the taper portion is provided above the taper portion, and the same diameter of the outer diameter dimension of the lower end of the taper portion is provided below the taper portion. Sections are provided.

  As shown in FIG. 8, the positioning pin 12 is elastically supported on the movable base 13 by a pin support spring 50 so as to be vertically movable. The pin support spring 50 is a coil spring and is arranged above the positioning pin 12. The pin support spring 50 is provided in a state of being inserted into a spring support hole 51 provided in a portion including the movable base portion 13 and the grip portion 16, which are portions that relatively move relative to the apparatus main body portion 11. .

  The spring support hole 51 is opened in the lower surface 13b of the movable base portion 13 and is provided with a depth reaching the base portion of the grip portion 16 from the movable base portion 13 so that the central axis direction coincides with the apparatus central axis O1. The pin support spring 50 elastically supports the positioning pin 12 located on the lower side with the upper part thereof inserted into the spring support hole 51. That is, the upper end of the pin support spring 50 contacts the bottom of the spring support hole 51, and the lower end of the pin support spring 50 contacts the upper end surface 12 c of the positioning pin 12.

  As described above, the positioning pin 12 provided elastically supported on the upper side by the pin support spring 50 is restricted from moving relative to the distal end side with respect to the main body base 21 of the apparatus main body 11 at a predetermined position. . At the base end (upper end) of the positioning pin 12, there is provided an enlarged diameter portion 12d that forms a step surface facing downward. On the other hand, the central hole portion 21b of the main body base portion 21 through which the positioning pin 12 penetrates has a stepped surface 21h that faces upwards by expanding the diameter of the upper portion from the midway portion in the vertical direction.

  The enlarged diameter portion of the central hole portion 21b above the step surface 21h has a larger diameter than the enlarged diameter portion 12d of the positioning pin 12, and the portion of the central hole portion 21b below the step surface 21h has a positioning pin. The diameter is smaller than that of the expanded diameter portion 12d. Therefore, regarding the downward relative movement of the positioning pin 12 with respect to the main body base portion 21, the enlarged diameter portion 12d comes into contact with the step surface 21h of the central hole portion 21b to lock the positioning pin 12 and move the positioning pin 12 downward. Movement is restricted.

  As described above, the positioning pin 12 is elastically supported by the pin support spring 50 for upward relative movement with respect to the main body base 21, and moves downward relative to the main body base 21 by moving the enlarged diameter portion 12d through the step surface 21h. The movement is restricted by locking to. The pin support spring 50 has an outer diameter that can be inserted into the enlarged diameter portion on the upper side of the central hole portion 21b, and the pin support spring 50 is positioned within the range of relative movement between the apparatus main body portion 11 and the movable base portion 13. The contact state with the pin 12 is maintained.

  Further, as shown in FIGS. 12 (a) and 12 (b), the positioning pin 12 has a structure capable of mounting the diameter expansion cap 52. The diameter expansion cap 52 is attached to the positioning pin 12 to expand the diameter of the insertion portion of the positioning pin 12 into the mounting hole 2a of the bumper 2.

  As shown in FIG. 12A, the diameter expansion cap 52 is attached to the tip of the positioning pin 12. The diameter expansion cap 52 is a substantially cylindrical member as a whole. At one end (upper side) of the diameter expansion cap 52, a fitting recess 53 into which the tip of the positioning pin 12 is inserted is provided.

  The fitting recess 53 is a cylindrical recess, and has an inner peripheral surface 53a formed by a peripheral wall 52a at the upper end of the diameter expansion cap 52, and a bottom surface 53b perpendicular to the central axis direction of the diameter expansion cap 52. The inner diameter of the fitting recess 53 is substantially the same as the outer diameter of the tip of the positioning pin 12, and the enlarged diameter cap 52 has the central axis aligned with the positioning pin 12 when mounted on the positioning pin 12. .

  In the diameter expansion cap 52, a disk-shaped magnet 54 is provided so as to project to the center of the fitting recess 53. The magnet 54 locates a lower half portion in the plate thickness direction in the hole 52b that opens to the bottom surface 53b of the fitting recess 53, and a lower half portion in the plate thickness direction in the fitting recess 53. It is provided in a state of being projected from the bottom surface 53b.

  As shown in FIG. 12A, the magnet 54 is fixed and supported by a fixture 55 such as a bolt inserted from the side (lower side) opposite to the fitting recess 53 of the diameter expansion cap 52. The fixture 55 is screwed into a screw hole 52c formed on the lower side of the hole 52b so as to communicate with the hole 52b, and the head 55a is inserted into a recess 52d formed on the lower end surface of the diameter expansion cap 52. Position it.

  On the other hand, at the tip of the positioning pin 12, a magnetic body 56 such as iron that receives the magnetic force of the magnet 54 of the diameter-expanding cap 52 is provided. The magnetic body 56 has a columnar outer shape having substantially the same diameter as the magnet 54, and is provided in the tip recess 12 e provided on the tip side of the positioning pin 12. The magnetic body 56 is provided in the positioning pin 12 in a state of being fixed by an appropriate method such as a method using a fixture such as a bolt.

  According to such a diameter expansion cap 52, the diameter expansion cap 52 can be attached / detached to / from the positioning pin 12 with one touch by inserting / removing the tip end of the positioning pin 12 into / from the fitting recess 53. By mounting the diameter expansion cap 52 on the positioning pin 12, a diameter expansion portion for the tapered portion 12a is formed on the tip end side of the positioning pin 12 as an insertion portion for the mounting hole 2a of the bumper 2. That is, the outer peripheral surface 52e of the diameter-enlarging cap 52, which is a cylindrical surface, forms an enlarged-diameter portion having a larger outer diameter dimension than the tapered portion 12a with respect to the positioning pin 12. The outer peripheral surface 52e of the enlarged diameter cap 52 may be formed as a tapered surface similar to the tapered surface 12b of the positioning pin 12.

  By using the diameter-enlarging cap 52 that is attachable to and detachable from the positioning pin 12 in this manner, it is possible to accommodate two types of mounting holes 2a having different diameters. Accordingly, for example, two types of bumpers 2 having different hole diameters of the mounting holes 2a can be handled by one crimping jig device 1, and the versatility of the crimping jig device 1 can be improved. Further, by preparing a plurality of diameter-expanding caps 52 having different outer diameter dimensions, it is possible to use a common crimping jig device 1 and accommodate a plurality of hole diameters for the mounting hole 2a.

  The engagement support leg portion 15 has an engagement portion 57 that engages with an engaged portion 2d (see FIG. 1) provided on the bumper 2. The engagement support leg portion 15 restricts the rotation of the positioning pin 12 around the axis line along the up-down direction of the apparatus body portion 11 with respect to the bumper 2 by engaging the engagement portion 57 with the engaged portion 2d. Function as a rotation restricting portion.

  The engagement support leg portions 15 are symmetrically provided at two locations with the position of the device center axis O1 as the center. That is, as shown in FIG. 5, the pair of engagement support legs 15 included in the crimping jig device 1 are provided on both left and right sides of the device main body 11 and are symmetrical in the left-right direction.

  The engagement support leg portion 15 has a leg portion 58 that supports the engagement portion 57. The leg portion 58 has a linear vertical portion 58a extending in the vertical direction, and a linear shape extending horizontally from the lower end of the vertical portion 58a to the outside in the radial direction of the circumference centered on the position of the device center axis O1. And a horizontal portion 58b. The leg portion 58 is formed in a substantially "L" shape by the vertical portion 58a and the horizontal portion 58b. An engaging portion 57 is provided at the tip of the horizontal portion 58b.

  The engagement portion 57 is a portion having a rectangular parallelepiped outer shape. The engaging portion 57 has front and rear side surfaces 57a, 57a that are flat surfaces along the vertical direction.

  On the other hand, as shown in FIG. 1, the engaged portion 2d of the bumper 2 with which the engaging portion 57 engages is composed of a pair of protrusion pieces 2e that are parallel to each other. The protruding piece 2e is a rectangular plate-shaped protruding portion slightly protruding from the inner side surface 2b of the bumper 2. The projecting piece 2e has a width direction in the rectangular plate shape as a projecting direction from the inner side surface 2b.

  The distance between the two protruding pieces 2e is substantially the same as the dimension of the engaging portion 57 in the front-rear direction. The engaging portion 57 has the front and rear side surfaces 57a, 57a brought into contact with the inner surfaces 2f of the pair of projecting piece portions 2e on the opposite sides, and is fitted between the pair of projecting piece portions 2e in the engaged portion 2d. Engage. The lengthwise dimension of the protrusion 2e is not particularly limited, but is approximately the same as the dimension of the engaging portion 57 in the left-right direction, for example.

  The engaged portion 2d has a radial distance in the circumference around the position of the central axis of the mounting hole 2a in relation to the mounting hole 2a into which the positioning pin 12 is inserted, and the pair of protrusions 2e. The orientation is provided so as to correspond to the positional relationship between the positioning pin 12 and the engaging portion 57 in the crimping jig device 1. That is, the engaged portion 2d is provided at a position where the engaging portion 57 can be fitted in the state where the positioning pin 12 is inserted into the mounting hole 2a.

  Regarding the relative positional relationship of the engaged portion 2d with respect to the mounting hole 2a, regarding the circumferential position of the circumference centered on the position of the central axis of the mounting hole 2a, the mounting direction of the retainer 4 with respect to the bumper 2 is It is set to have a predetermined mounting orientation. Here, the mounting direction of the retainer 4 with respect to the bumper 2 is determined based on the mounting direction of the sensor 3 with respect to the bumper 2.

  As described above, the mounting direction of the sensor 3 which is an ultrasonic sensor is specified with respect to the bumper 2 from the viewpoint of ensuring detection accuracy based on the directivity characteristics of ultrasonic waves and the like. Here, the mounting direction of the sensor 3 with respect to the bumper 2 is such that, in the sensor 3 mounted on the bumper 2 with the microphone surface 3d facing outward from the mounting hole 2a, a cylindrical detection portion forming a circular microphone surface 3d. 3b is the direction of rotation around the central axis of 3b (rotation angle position).

  Since the sensor 3 is integrally assembled to the retainer 4 as described above, the mounting direction of the retainer 4 to the bumper 2 is determined to be a predetermined mounting direction based on the mounting direction of the sensor 3 to the bumper 2 as described above. . Here, the mounting direction of the retainer 4 with respect to the bumper 2 is the direction (rotational angle position) of the retainer 4 in the rotation direction around the central axis of the cylindrical assembly main body portion 4a.

  Therefore, as described above, in the crimping jig device 1, in the configuration in which the retainer 4 is held in the predetermined mounting direction (rotational angle position) with respect to the rotation direction with the central axis of the assembly body 4a as the rotation axis, A rotation angle position is defined with the device center axis O1 of the crimping jig device 1 in a state where the positioning pin 12 is inserted into the mounting hole 2a as a rotation axis so that the positioning pin 12 is mounted in a predetermined mounting direction with respect to the bumper 2. Here, the rotational angle position of the crimping jig device 1 is defined by the position of the engaged portion 2d in the circumferential direction of the circumference centered on the position of the central axis of the mounting hole 2a. That is, the position of the engaged portion 2d in the circumferential direction is the rotation angle position of the crimping jig device 1 such that the retainer 4 held by the crimping jig device 1 is oriented in a predetermined direction with respect to the bumper 2. Is the position that defines

  The engagement support leg 15 is supported by the slide support mechanism 60 with respect to the apparatus main body 11 so as to be movable in the vertical direction. The slide support mechanism section 60 includes a base section 61 fixed to the main body base section 21 of the apparatus main body section 11, and a movable support section 62 supported together with the engagement support leg sections 15 so as to be vertically movable relative to the base section 61. And a slide mechanism portion 63 for slidingly moving the movable support portion 62 with respect to the base portion 61.

  The base portion 61 includes a rectangular plate-shaped base main body portion 61a, and a rectangular plate-shaped horizontal support portion 61b protruding at a right angle from the one end side in the longitudinal direction of the base main body portion 61a with the same width as the base main body portion 61a. Have. The base portion 61 is fixed to the apparatus body portion 11 with the left and right side surfaces 23a, 23a of the substantially octagonal base portion 23 forming the apparatus body portion 11 as mounting surfaces.

  The base portion 61 has the horizontal support portion 61b as an upper side, and the horizontal support portion 61b is projected to the left and right outside in an eaves-like manner, and one plate surface of the base main body portion 61a is provided on the left and right side surfaces 23a and 23a of the base portion 23. Fixed in contact. The base portion 61 is fixed to the apparatus main body portion 11 by a fastener such as a bolt. For this reason, the left and right side surfaces 23a, 23a of the base portion 23 constituting the apparatus main body portion 11 are formed with screw holes 23b for screwing a fastener (see FIGS. 6 and 9). 6 and 9, the engagement support leg portion 15 and the slide support mechanism portion 60 are not shown. The base portion 61 is fixed in a state where a substantially lower half portion of the base body portion 61a is in contact with the left and right side surfaces 23a, 23a.

  The movable support portion 62 is a block body having a rectangular thick plate shape or a rectangular parallelepiped shape. The movable support portion 62 has substantially the same width dimension as the base main body portion 61a of the base portion 61, and is arranged so that the position in the front-rear direction is substantially aligned with the base main body portion 61a in the direction in which the plate thickness direction is the horizontal direction. Placed and supported by. Therefore, the movable support portion 62 makes the inner plate surface 62a face the other (outer) plate surface 61c of the base body 61a.

  The engagement support leg portion 15 is supported on the lower surface 62 b of the movable support portion 62. The engagement support leg portion 15 is supported in a manner in which the vertical portion 58a extends downward from the lower surface 62b of the movable support portion 62. The movable support portion 62 is a portion that moves in the vertical direction integrally with the engagement support leg portion 15.

  The slide mechanism portion 63 is provided between the base body portion 61 a of the base portion 61 and the movable support portion 62. The slide mechanism section 63 supports the movable support section 62 in a vertically slidable state with respect to the base section 61 fixed to the apparatus main body section 11. The slide mechanism portion 63 has a linear guide 65 provided on the plate surface 61c outside the base body portion 61a, and a slide portion 66 that slides on the linear guide 65.

  The linear guide 65 is provided by fixing the linear guide 65 on the outer plate surface 61c of the base body 61a with a fixing tool such as a bolt with the vertical direction as the extending direction. The linear guide 65 extends in the widthwise central portion of the base main body 61a so as to form a ridge in the vertical direction over substantially the entire portion of the base main body 61a except for the upper end thereof. The slide portion 66 is provided so as to be fitted to the linear guide 65 on the plate surface 61c from above (outside in the left-right direction). The slide portion 66 is linearly moved by the linear guide 65 so as to be vertically slidable.

  The movable support portion 62 is fixed to the slide portion 66. As a result, the movable support portion 62 moves vertically together with the slide portion 66. The movable support portion 62 receives the fixing of the slide portion 66 on the left and right inner plate surfaces 62c facing the outer plate surface 61c of the base body 61a. The slide portion 66 is fixed to the central portion of the movable support portion 62 in the longitudinal direction. The movable support portion 62 is fixed to the slide portion 66 by a fastener 67 such as a bolt screwed from the plate surface 62d side on the left and right outside.

  As described above, the movable support portion 62 that supports the engagement support leg portion 15 is vertically integrated with the slide portion 66 with respect to the apparatus main body portion 11 to which the base portion 61 is fixed by the slide mechanism portion 63. It is supported so that it can slide. As a result, the engagement support leg portion 15 is linearly movable relative to the apparatus main body portion 11 in the vertical direction (see FIG. 5, arrow C1).

  The movable support portion 62 is elastically supported by the elastic support portion 70 with respect to the horizontal support portion 61 b of the base portion 61 for upward movement. The elastic support portion 70 is provided vertically between the movable support portion 62 and the horizontal support portion 61b at a central position in the front-rear direction.

  The elastic support portion 70 includes a support shaft 71 provided with the vertical direction as an axial direction, and a support spring penetrating the support shaft 71 and interposed between the horizontal support portion 61 b of the base portion 61 and the movable support portion 62. And 72. The elastic support portion 70 guides the relative vertical movement of the movable support portion 62 with respect to the base portion 61 by the support shaft 71. Further, the elastic support portion 70 applies a downward biasing force to the movable support portion 62 moving upward by the support spring 72, and elastically supports the movable support portion 62. As described above, the elastic support portion 70 has a function of elastically supporting the movable support portion 62 while guiding the vertical movement of the movable support portion 62.

  The support shaft 71 extends upward from the upper surface 62e of the movable support portion 62. The support shaft 71 moves up and down integrally with the movable support portion 62. The support shaft 71 is provided so as to be relatively movable with respect to the horizontal support portion 61b while penetrating the horizontal support portion 61b of the base portion 61. For this reason, the horizontal support portion 61b is formed with a through hole that allows the support shaft 71 to pass through in a relatively movable manner. An enlarged diameter portion 71a having an outer diameter larger than the diameter of the through hole of the horizontal support portion 61b is provided on the upper end portion of the support shaft 71 protruding upward from the horizontal support portion 61b. The expanded diameter portion 71a serves as a locking portion that restricts the support shaft 71 from coming off from the through hole of the base portion 61 by contacting the upper surface 61e of the horizontal support portion 61b. The support shaft 71 is configured by, for example, a bolt that is screwed into the movable support portion 62 from the upper surface 62e and has the head portion as the expanded diameter portion 71a.

  The support spring 72 is a coil spring, and is provided in a state in which a portion between the horizontal support portion 61 b of the base portion 61 of the support shaft 71 and the movable support portion 62 is penetrated. The support spring 72 has its lower end abutted on the upper surface 62e of the movable support portion 62 and its upper end abutted on the lower surface 61f of the horizontal support portion 61b. The support spring 72 biases the movable support portion 62 downward.

  According to the elastic support portion 70 configured as described above, the movable support portion 62 that moves in the up-down direction integrally with the engagement support leg portion 15 protrudes upward from the horizontal support portion 61b of the support shaft 71. Is increased, and is moved upward against the biasing force of the support spring 72. A plurality of elastic support parts 70 may be provided.

  Further, the crimping jig device 1 of the present embodiment includes a proximity sensor 80 for detecting that the device body 11 and the movable base 13 are close to each other in the vertical direction until a predetermined positional relationship is established.

  As described above, the crimping jig device 1 has a biasing spring that increases the biasing force as the device body 11 and the movable base 13 approach each other due to the vertical relative movement of the device body 11 and the movable base 13. 14 is provided. Therefore, the closer the movable base 13 is to the apparatus main body 11, the greater the pressing force by the pressing surface 10, that is, the pressure-bonding force with respect to the bumper 2 that acts on the retainer 4.

  Therefore, the proximity sensor 80 is provided in order to detect the pressing force of the retainer 4 by the pressing jig device 1 that the movable base 13 has approached the device body 11 to a position where a predetermined pressing force is obtained. There is. In other words, the proximity sensor 80 detects the proximity of the apparatus main body 11 and the movable base 13 in the vertical direction, so that the crimping force of the crimping jig device 1 is guaranteed based on the spring constant of the biasing spring 14.

  The proximity sensor 80 is provided in a substantially central portion of the movable base 13 with the detection surface 81 facing downward. The proximity sensor 80 is provided in a state where the end portion on the detection surface 81 side is projected from the lower surface 13b of the movable base portion 13 and fixed to the movable base portion 13. Therefore, the proximity sensor 80 moves vertically together with the movable base 13. An output cable 82 extends from the side of the proximity sensor 80 opposite to the detection surface 81. The output cable 82 extends from the movable base portion 13 to the outside through a guide hole 16c formed along the longitudinal direction of the grip portion 16 and opening to the upper end surface 16b.

  The proximity sensor 80 detects a detection target object existing at a predetermined distance from the detection surface 81 in a non-contact manner. A detected part 83 which is an object to be detected by the proximity sensor 80 is provided on the device body 11 side. The detected portion 83 is made of a material (for example, iron) according to the detection method of the proximity sensor 80, such as an induction type or a capacitance type. The detected portion 83 is a protrusion-shaped portion that projects upward from the main body supporting surface 21a of the apparatus main body 11. The detected portion 83 has a detected surface 83a which is a horizontal surface facing the detection surface 81 of the proximity sensor 80. The detected portion 83 is formed of, for example, a bolt that is vertically inserted into the main body supporting surface 21a. In this case, the upper surface of the head of the bolt becomes the detected surface 83a.

  With such a configuration, when the movable base 13 approaches the apparatus main body 11 and the distance between the detection surface 81 of the proximity sensor 80 and the detected surface 83a reaches a predetermined distance (for example, about 1 mm), The proximity sensor 80 outputs a detection signal. That is, when the stroke amount of the movable base 13 from the natural state of the crimping jig device 1 toward the device body 11 reaches a predetermined amount, the proximity sensor 80 detects the detected portion 83, and the proximity sensor 80 detects The detection signal is output. The output signal from the proximity sensor 80 is output via the output cable 82. The vertical positional relationship between the device main body 11 and the movable base 13 that output a detection signal by the proximity sensor 80 is the spring coefficient of the two biasing springs 14 and the spring of the coil spring 48 of the six spring plungers 45. Based on the coefficient and the like, it is set so that a sufficient pressing force can be obtained as the crimping force of the retainer 4 by the crimping jig device 1.

  According to the crimping jig device 1 including the proximity sensor 80 as described above, for example, the following crimping inspection system is configured. As shown in FIG. 13, the crimping inspection system 100 according to the present embodiment is a system including the crimping jig device 1, and is used in a process of attaching the retainer 4 to the bumper 2 of the automobile manufacturing line. The crimping inspection system 100 includes a crimping jig device 1, a terminal block 101 to which an output cable 82 of a proximity sensor 80 of the crimping jig device 1 is connected, and a notification box 102 connected to the terminal block 101 by a connection wiring 103. Equipped with.

  In the crimp inspection system 100, in order to guarantee the crimping force of the retainer 4 to each mounting hole 2a by using the detection signal from the proximity sensor 80 in the bumper 2 in which the mounting holes 2a to which the retainer 4 is mounted are provided at a plurality of locations. belongs to. The example shown in FIG. 13 is a configuration example in which mounting holes 2 a for mounting the retainer 4 in the bumper 2 are provided at four positions in the longitudinal direction of the bumper 2 at predetermined intervals.

  In the crimp inspection system 100, the detection signal output from the proximity sensor 80 is input to the notification box 102 from the output cable 82 via the terminal block 101 and the connection wiring 103. The notification box 102 has a first lighting lamp 111, a second lighting lamp 112, a third lighting lamp 113, and a fourth lighting lamp 114, which respectively correspond to the four mounting holes 2a of the bumper 2. The notification box 102 also has an abnormal lamp 115, a lamp confirmation button 116, and an abnormal reset button 117.

  The first to fourth lighting lamps 111 to 114 are configured to light up when a detection signal from the proximity sensor 80 is input in the crimping work of the retainer 4 by the crimping jig device 1 to the corresponding mounting holes 2a. There is. The details are as follows.

  As a crimping procedure of the retainer 4 using the crimping jig device 1 to the four mounting holes 2a of the bumper 2, for example, the retainer 4 is sequentially installed from the mounting hole 2a located on one end side of the bumper 2 to the mounting hole 2a on the other end side. Is installed. In the crimping operation of the retainer 4 to each mounting hole 2a, the operator having the grip portion 16 presses the crimping jig device 1 from the upper side to the lower side, so that the movable base portion 13 strokes and the apparatus main body portion 11 The proximity sensor 80 detects the detected portion 83 and outputs a detection signal from the proximity sensor 80. When the notification box 102 receives the detection signal from the proximity sensor 80, the notification box 102 recognizes that the press-fitting of the retainer 4 with respect to the mounting hole 2a is completed.

  Therefore, when the notification box 102 recognizes that the retainer 4 has been crimped to the first mounting hole 2a, it turns on the first lighting lamp 111. Similarly, when the notification box 102 recognizes the completion of crimping of the retainer 4 to the second mounting hole 2a, it turns on the second lighting lamp 112 and recognizes the completion of crimping of the retainer 4 to the third mounting hole 2a. When the third lighting lamp 113 is turned on and it is recognized that the retainer 4 has been crimped to the fourth mounting hole 2a, the fourth lighting lamp 114 is turned on. The notification box 102 has a notification sound generation unit 118, and is configured to generate a notification sound such as a buzzer sound from the notification sound generation unit 118 when each lighting lamp is turned on.

  In the mounting process of the retainer 4 to the bumper 2, all the lighting lamps of the first to fourth lighting lamps 111 to 114 are turned on, so that the worker attaches the retainer 4 to the next vehicle flowing through the production line. Move on to. Here, as an NG example, there is a case where the crimping work of the retainer 4 to the four mounting holes 2a is completed in a state where only three of the four lighting lamps are lit. In this case, shifting to the next vehicle is limited.

  The abnormality lamp 115 provided in the notification box 102 is a lamp that lights up when an abnormality such as a defective pressure bonding occurs in the pressure bonding work of the retainer 4 by the pressure bonding jig device 1. The lamp confirmation button 116 is a button pressed when it is confirmed that all the lighting lamps of the first to fourth lighting lamps 111 to 114 are lit. When the lamp confirmation button 116 is pressed, the process shifts to the next vehicle. The abnormality reset button 117 is a button that is pressed when the pressure bonding operation is restarted after an abnormality occurs in the pressure bonding operation of the retainer 4 and the abnormality lamp 115 is lit as described above. By pressing the abnormality reset button 117, the abnormality lamp 115 is turned off.

  According to the crimp inspection system 100 as described above, in the crimping work of the retainer 4 with respect to each of the plurality of mounting holes 2a of the bumper 2, it is possible to easily detect the crimping failure of the retainer 4, and the crimping force of a predetermined value or more. With this, the retainer 4 can be securely attached.

  The position where the proximity sensor 80 is provided in the crimping jig device 1 is not particularly limited as long as it can detect the proximity of the movable base portion 13 to the device body 11. Further, another sensor may be used instead of the proximity sensor 80. That is, as a sensor for detecting that the apparatus main body 11 and the movable base portion 13 are close to each other in the vertical direction, for example, a contact detection type sensor such as a limit switch may be used. Good.

  A procedure of crimping the retainer 4 by the crimping jig device 1 according to the present embodiment and an operation of the crimping jig device 1 will be described.

  As a procedure for the crimping operation of the retainer 4 by the crimping jig device 1, first, the retainer 4 is mounted on the crimping jig device 1. As described above, the retainer 4 has a posture in which the positioning pin 12 penetrates the support hole 4d, the attachment surface 4c faces downward, and a rotation direction in which the central axis of the assembly body 4a is the rotation axis. Is held in the crimping jig device 1 in a predetermined direction. The holding structure of the retainer 4 in the crimping jig device 1 is as follows.

  As shown in FIGS. 7 and 8, a fitting recess 21j into which the assembling body 4a of the retainer 4 fits is formed in the lower center of the body base 21 of the apparatus body 11. The fitting recess 21j is provided inside (the device center axis O1 side) of the storage recess 21c in which the movable pressing portion 22 is stored. The fitting recess 21j forms a recess corresponding to the outer peripheral shape of the assembly body 4a of the retainer 4.

  More specifically, as shown in FIGS. 2A to 2C, in the outer peripheral portion of the substantially cylindrical assembly main body portion 4a of the retainer 4, the positions corresponding to the pair of holding piece portions 4f and the assembly are performed. At the positions on both sides in the direction orthogonal to the facing direction of the pair of holding piece portions 4f as viewed in the axial direction of the main body portion 4a, the fitting projections 4j projecting in a substantially rectangular shape on the outer side in the radial direction of the assembly main body portion 4a, 4k is provided. The fitting protrusion 4j provided at a position corresponding to the pair of holding piece portions 4f is wider than the fitting protrusion 4k provided at a position shifted by approximately 90 ° with respect to these.

  With respect to the outer peripheral surface shape of the assembling body 4a in the retainer 4 as described above, in the fitting recess 21j of the crimping jig device 1, the recess 21k into which the fitting protrusions 4j, 4k of the retainer 4 fit, respectively. Are formed (see FIG. 7). Further, an inner peripheral support surface 21m corresponding to the outer peripheral surface of the assembly main body 4a along the cylindrical shape is formed between the recesses 21k adjacent to each other in the circumferential direction of the fitting recess 21j.

  Further, in the fitting concave portion 21j, an insertion hole 21n into which the pair of holding piece portions 4f of the retainer 4 are fitted is formed. The insertion hole 21n is opened in a central lower surface 21p which is a bottom surface of the fitting recess 21j and which is open on the lower side of the central hole portion 21b of the main body base 21. The insertion hole 21n has an elongated hole shape corresponding to the width of the plate-shaped holding piece 4f, and has a depth into which most of the holding piece 4f of the retainer 4 is inserted. In the bottom view of the crimping jig device 1, the pair of insertion holes 21n are formed in parallel with each other with the central hole portion 21b positioned between them (see FIG. 7).

  In such a structure, as shown in FIG. 14, the retainer 4 is fitted with the pair of holding piece portions 4f corresponding to the positions of the insertion holes 21n with the positioning pin 12 penetrating the support hole portion 4d. By being pushed into the recess 21j side (see arrow C1), the crimping jig device 1 is mounted. That is, the pair of holding pieces 4f is inserted into the insertion hole 21n, the assembling body 4a is fitted into the fitting recess 21j, and the retainer 4 is held by the crimping jig device 1. In the holding state of the retainer 4, the eight pressing surfaces 10 of the crimping jig device 1 face the upper surface 4h of the attaching plate portion 4b of the retainer 4. In this way, the retainer 4 is held in the state of being positioned with respect to the crimping jig device 1 in the state of being mounted in the crimping jig device 1.

  After the retainer 4 is attached to the crimping jig device 1, the operator who holds the holding portion 16 inserts the positioning pin 12 protruding downward from the retainer 4 into the mounting hole 2 a of the bumper 2. With the insertion of the positioning pin 12 and the position adjustment with respect to the rotation direction of the crimping jig device 1 about the device center axis O1 (see arrow D1 in FIG. 1), the engagement support leg portion 15 covers the bumper 2. The engagement portion 2d is fitted and engaged.

  In this way, the crimping jig device 1 is positioned with respect to the bumper 2, that is, the retainer 4 held in the crimping jig device 1 in a predetermined posture is positioned with respect to the bumper 2. That is, regarding the positioning of the crimping jig device 1 (retainer 4) with respect to the mounting hole 2a of the bumper 2, the two-dimensional positioning along the surface where the mounting hole 2a opens by inserting the positioning pin 12 into the mounting hole 2a. Then, the engagement support leg portion 15 is engaged with the engaged portion 2d, so that the positioning in the rotation direction about the apparatus central axis O1 is performed. In this embodiment, one engaged portion 2d is provided for one mounting hole 2a, and one of the pair of engaging support leg portions 15 is engaged. Used by being engaged with the portion 2d, the positioning in the rotation direction is performed. In this manner, the crimping jig device 1 holding the retainer 4 is positioned and set with respect to the bumper 2.

  From the state where the crimping jig device 1 is set on the bumper 2, the operator holding the grip portion 16 performs a pressing operation of pressing the movable base portion 13 integrated with the grip portion 16 downward. As a result, the movable base 13 moves downward against the urging force of the urging spring 14 and approaches the apparatus main body 11. That is, the urging force of the urging spring 14 with respect to the apparatus main body 11 increases. Further, in the process of lowering the movable base 13, after the pin 47 of the spring plunger 45 abuts the upper surface 27a of the pressed portion 27, the coil spring 48 of the spring plunger 45 is acted upon by the biasing force of the movable base 13. Biasing force is added.

  Then, the pressed portion 27 is pressed from the upper side by each of the eight spring plungers 45, so that a downward force acts on each movable pressing portion 22, and the pressing surface 10 of the movable pressing portion 22 causes the retainer 4 to move. The sticking plate part 4b is pressed from the upper surface 4h side. As a result, the sticking plate portion 4b comes into pressure contact with the inner side surface 2b of the bumper 2, and the retainer 4 is pressure-bonded to the bumper 2 by the double-sided tape 5 stuck to the sticking surface 4c which is the lower surface of the sticking plate portion 4b.

  Here, as shown in FIG. 15, an independent vertical movement of each movable pressing portion 22 with respect to the main body base portion 21 (see arrow A1 in FIG. 8), and a swing pressing body forming the pressing surface 10 in each movable pressing portion 22. By the rotation operation of 31 (see arrow B1 in FIG. 11), the curved shape of the inner side surface 2b of the bumper 2 is dealt with. That is, the crimping jig device 1 is pressed downward by the operator who grips the grip portion 16, so that the movable pressing portion 22 moves up and down and swings in accordance with the curved shape of the inner side surface 2 b of the bumper 2. The pressing body 31 is automatically rotated, and a pressing force is applied to the retainer 4 with each pressing surface 10 along the inner surface 2b.

  As described above, in the crimping jig device 1 of the present embodiment, the support mechanism of the movable base portion 13 with respect to the device main body portion 11 by the two urging support portions 40 and the movable pressing portion 22 by each of the eight spring plungers 45. And a push mechanism including the operating mechanism.

  Further, the vertical movement of the engaging support leg portions 15 by the elastic support portions 70 on both the left and right sides automatically changes the vertical position of the engaging support leg portions 15 in accordance with the curved surface shape of the inner side surface 2b of the bumper 2. As a result, when the positioning pin 12 is inserted into the mounting hole 2a, the engaged state of the engagement support leg portion 15 with respect to the engaged portion 2d can be obtained corresponding to the curved surface shape of the inner side surface 2b.

  As described above, the movable base portion 13 strokes downward by a predetermined amount with respect to the apparatus main body portion 11, whereby sufficient pressing force by the pressing surface 10 is obtained, and the pressure bonding of the retainer 4 is completed. Here, upon completion of crimping of the retainer 4, it is detected by the detection signal from the proximity sensor 80 that the stroke amount of the movable base portion 13 with respect to the apparatus main body portion 11 has reached a predetermined amount.

  It should be noted that, by mechanically restricting the proximity movement of the movable base portion 13 with respect to the device body portion 11, the stroke amount of the movable base portion 13 with respect to the device body portion 11 is set to a prescribed amount without using the proximity sensor 80. May be. As such a configuration, for example, at least one of the device main body 11 and the movable base 13 is provided with a stopper that restricts the movable base 13 from moving closer to the device main body 11 by a predetermined amount or more. This stopper is, for example, a protrusion provided on the main body supporting surface 21 a of the apparatus main body 11 or the lower surface 13 b of the movable base 13. In such a configuration, the contact of the predetermined portion of the apparatus main body 11 or the movable base 13 with the stopper completes the crimping of the retainer 4.

  According to the crimping jig device 1 of the present embodiment described above, positioning and crimping of the retainer 4 with respect to the bumper 2 can be performed easily and accurately, the retainer 4 can be attached to the bumper 2 with high accuracy, and it is highly versatile. You can get sex.

  That is, according to the crimping jig device 1 of the present embodiment, regarding the positioning of the retainer 4 with respect to the bumper 2, two-dimensional positioning by inserting the positioning pin 12 into the mounting hole 2a and the engagement support leg portion 15 are performed. Since the positioning in the rotational direction is performed by the engagement with the engaged portion 2d, the retainer 4 can be accurately attached to the bumper 2. As a result, it is possible to improve the mounting accuracy of the sensor 3 integrally assembled to the retainer 4 with respect to the bumper 2, and thus it is possible to ensure the detection accuracy based on the ultrasonic directional characteristics of the sensor 3 and the like. It is possible to prevent the appearance of the mounting portion of the sensor 3 from deteriorating.

  Further, when the retainer 4 is attached to the bumper 2, the crimping jig device 1 of the present embodiment does not require dedicated equipment or jigs that are adapted to the shapes and attachment positions of parts that differ depending on the vehicle model or the like. Therefore, according to the crimping jig device 1 of the present embodiment, it is not necessary to prepare equipment and jigs for each vehicle type and switch the equipments and jigs according to the vehicle type and the like, and to obtain high versatility. You can

  Particularly, the crimping jig device 1 of the present embodiment is configured as a hand tool including the grip portion 16. For this reason, it is not necessary to install a dedicated facility for crimping the retainer 4 to the bumper 2, and it is possible to eliminate the restrictions on the space in an automobile factory or the like. Further, since the equipment is not required, the cost can be suppressed and the investment cost can be reduced. Further, since it is configured as a hand tool, it is possible to easily deal with bumpers 2 having various shapes, as compared with the case where dedicated equipment is used as in the conventional case.

  Further, in the crimping jig device 1 of the present embodiment, the device main body portion 11 is a portion that forms the main body base portion 21 and the pressing surface 10 and independently moves in the vertical direction with respect to the main body base portion 21. And a movable pressing portion 22 that operates. With such a configuration, the pressing force can be uniformly applied to the retainer 4 in accordance with the product shape of the bumper 2, and the retainer 4 can be securely crimped according to the product shape of the bumper 2. . Thereby, the degree of freedom of the mounting position of the retainer 4 with respect to the curved shape of the bumper 2 is improved, and higher versatility can be obtained. Further, since the eight movable pressing portions 22 operate independently of each other, the pressing direction by the operator who holds the holding portion 16 and presses the crimping jig device 1 is the vertical direction with respect to the inner surface 2b of the bumper 2. Even if it is slightly deviated from (the central axis direction of the mounting hole 2a), it is possible to prevent the load from being biased to some of the pressing surfaces 10 at the eight positions.

  In addition, in the crimping jig device 1 of the present embodiment, the movable pressing portion 22 is arranged around the positioning pin 12 as a portion forming the pressing surface 10 and is supported by a plurality of (8 Of the pressure plate 33. With such a configuration, the directions of the plurality of pressing surfaces 10 can be made to correspond to each other independently according to the product shape of the bumper 2, so that the pressing force of each pressing surface 10 is applied to the attaching plate portion 4b of the retainer 4. The retainer 4 can be more reliably pressed against the retainer 4 more reliably. As a result, the degree of freedom of the mounting position of the retainer 4 with respect to the curved shape of the bumper 2 is further improved, and higher versatility can be obtained.

  Further, the eight pressing surfaces 10 are arranged radially around the position of the central axis of the device in the bottom view of the crimping jig device 1 (see FIG. 7), and have a thickness of the pressing plate portion 33 in the radial direction. Due to the difference, the pressing surface 10 is inclined downward toward the center. According to such a configuration, the retainer 4 held in a state where the positioning pin 12 is penetrated follows the concave curved surface of the inner side surface 2b of the bumper 2 with respect to the attaching plate portion 4b located around the positioning pin 12. It is possible to efficiently transmit the pressing force.

  Further, in the crimping jig device 1 of the present embodiment, the movable base portion 13 is provided with the spring plunger 45 that applies a pressing biasing force to each movable pressing portion 22 from above. With such a configuration, it is possible to apply a pressing force to the movable pressing portion 22 by the urging force while absorbing the difference between the vertical positions of the movable pressing portions 22 according to the product shape of the bumper 2. As a result, the pressing force of each pressing surface 10 can be efficiently applied to the retainer 4 according to the product shape of the bumper 2.

  Further, the crimping jig device 1 of the present embodiment includes a proximity sensor 80 for detecting the proximity of the movable base 13 to the device body 11. With such a configuration, in the configuration including the biasing spring 14 that increases the biasing force as the movable base portion 13 approaches the apparatus main body portion 11, it is possible to secure the pressing force required for crimping the retainer 4. . Thereby, the crimping quality of the retainer 4 to the bumper 2 can be ensured.

  Further, in the crimping jig device 1 of the present embodiment, the positioning pin 12 has a tapered portion 12a whose diameter gradually decreases toward the tip end side. With such a configuration, it becomes possible to cope with a change in the hole diameter of the mounting hole 2a of the bumper 2 within the range of the outer diameter of the tapered portion 12a. That is, when the mounting hole 2a has a relatively large diameter, the base side portion of the tapered portion 12a is positioned inside the mounting hole 2a, and when the mounting hole 2a has a relatively small diameter, the tip of the tapered portion 12a. The positioning by the positioning pin 12 is performed by locating the side portion in the mounting hole 2a. Therefore, for example, even when there is a tolerance in the hole diameter of the mounting hole 2a of the bumper 2 formed by the punching device or the like, there is no backlash between the positioning pin 12 and the mounting hole 2a. As for the positioning of the retainer 4 in the surface direction along the surface to be crimped, the positioning accuracy of the crimping jig device 1 with respect to the bumper 2 can be ensured.

  Further, in the crimping jig device 1 of the present embodiment, the positioning pin 12 is elastically supported by the pin support spring 50 with respect to the movable base portion 13. With such a configuration, when a certain amount of upward force is applied to the positioning pin 12 inserted into the mounting hole 2a, the positioning pin 12 resists the biasing force of the pin support spring 50 and causes the device body 11 to move. Move upward relative to. Thereby, it is possible to prevent the force from the positioning pin 12 from acting on the mounting hole 2a more than necessary from the state in which the positioning pin 12 having the tapered portion 12a is in contact with the inner peripheral surface of the mounting hole 2a. Therefore, it is possible to prevent the mounting hole 2a from expanding or deforming when the positioning pin 12 is inserted into the mounting hole 2a.

  Further, the crimping jig device 1 of the present embodiment has the engaging support leg portions 15 at two positions on the left and right sides. With this configuration, the following effects can be obtained. For example, in the bumper 2 having the corners on the left and right sides as described above, the position where the engaged portion 2d with which the engaging support leg 15 engages is provided is limited due to the shape restriction due to the curved surface shape or the like. Of the plurality of mounting holes 2a, the engaged portions 2d may be provided on the left and right sides opposite to each other with respect to the mounting holes 2a. In such a case, since the crimping jig device 1 has the engaging support leg portions 15 on both the left and right sides, the crimping jig device 1 is attached to the plurality of mounting holes 2a having the engaged portions 2d on the left and right opposite sides. It is possible to deal with this by simply moving the 1 laterally without rotating it by 180 °. That is, when the number of the engaging support legs 15 is one, it is necessary to rotate the crimping jig device 1 by 180 ° to change the direction, but according to the crimping jig device 1 of the present embodiment, This operation becomes unnecessary. As a result, the workability of crimping the retainer 4 to each of the plurality of mounting holes 2a can be improved.

  In addition, according to the configuration in which the crimping jig device 1 has the two engaging support leg portions 15 symmetrically, the device main body portion 11 is supported on the left and right sides with respect to the inner side surface 2b of the bumper 2. With respect to the surface of the bumper 2 to which the retainer 4 is to be crimped, it is possible to easily ensure the in-plane state of the crimping jig device 1 in which the positioning pin 12 is inserted into the mounting hole 2a. That is, it is possible to prevent the device central axis O1 of the crimping jig device 1 into which the positioning pin 12 is inserted from being inclined with respect to the direction perpendicular to the inner surface 2b of the bumper 2 (the central axis direction of the mounting hole 2a). . As a result, since the equilibrium of the crimping jig device 1 with respect to the bumper 2 can be ensured, the pressing force can be uniformly applied to the retainer 4, and the crimping quality of the retainer 4 can be improved.

  The crimping jig device according to the present invention, which has been described with respect to the embodiments as described above, is not limited to the above-described embodiments, and various modes can be adopted within the scope of the gist of the present invention.

  In the embodiment described above, the crimping jig device 1 is used for crimping the retainer 4 for mounting the sensor 3 to the bumper 2, but the member to be crimped according to the present invention has a hole portion. However, the adhesive component according to the present invention is not limited to the retainer 4.

  Further, in the above-described embodiment, the double-sided tape 5 for adhering the retainer 4 to the bumper 2 is attached to the retainer 4 side, but the double-sided tape 5 may be attached to the bumper 2 side. . Further, the adhesive member for adhering the retainer 4 to the bumper 2 is not limited to the double-sided tape 5 and may be an adhesive or the like.

  Further, in the above-described embodiment, the biasing spring 14 that is a coil spring is used as the biasing portion that biases the apparatus main body portion 11 toward the movable base portion 13. However, the biasing portion according to the present invention is It is not limited to this. The biasing portion according to the present invention may be, for example, another spring, or a pressing structure such as a cylinder mechanism.

  Further, in the above-described embodiment, as the engagement structure of the engagement support leg portion 15 with respect to the bumper 2, a rectangular parallelepiped engagement portion 57 and an engaged portion 2d including a pair of parallel projecting piece portions 2e. The engaging structure according to (3) is adopted, but the structure is not limited to this. As an engagement structure of the engagement support leg portion 15 with respect to the bumper 2, it is possible to regulate rotation of the crimping jig device 1 around the device center axis O1 with the positioning pin 12 inserted in the mounting hole 2a. Any structure may be used as long as it has a mating portion. Therefore, the engagement structure of the engagement support leg portion 15 with respect to the bumper 2 may be, for example, a fitting structure of a protrusion portion and a recess portion into which the protrusion portion is fitted. However, from the viewpoint of the positioning operability of the crimping jig device 1 with respect to the bumper 2 as the engagement structure of the engagement support leg portion 15 with respect to the bumper 2, a pair of the rectangular parallelepiped engagement portion 57 of the above-described embodiment is provided. Like the combination with the engaged portion 2d including the protruding piece portion 2e, it is preferable to have an engagement shape that can be engaged only by the vertical movement of the crimping jig device 1 with respect to the bumper 2. Further, when the member to be pressure-bonded is an injection-molded product such as the bumper 2, the engaged portion 2d has been described above from the viewpoint of preventing sink marks (dents) that cause poor appearance on the design surface (front surface) side. As in the embodiment, it is preferable that the bumper 2 is composed of a protruding piece 2e slightly protruding from the inner side surface 2b. Note that a plurality of engaged portions 2d may be provided for one mounting hole 2a.

  Further, in the above-described embodiment, the engaging support leg portions 15 are provided at two positions symmetrically, but the arrangement and the number of the engaging support leg portions 15 are not particularly limited, and the product shape of the bumper 2 is not limited. It is appropriately set according to the above. Therefore, for example, the engagement support leg portions 15 may be provided only at one place, or may be provided at four places at 90 ° intervals around the apparatus central axis O1.

  Further, in the above-described embodiment, the pressing surface 10 that presses the retainer 4 is composed of the plurality of movable pressing portions 22 that are independently movable with respect to the main body base portion 21 that constitutes the apparatus main body portion 11. The pressing surface 10 may be formed as an integral part of the main body base portion 21 or may be one continuous surface. However, from the viewpoint of reliably crimping the retainer 4 according to the product shape of the bumper 2 as described above, the pressing surface 10 is configured by the plurality of movable pressing portions 22 as in the above-described embodiment. It is preferable.

  Further, in the above-described embodiment, the pressing plate portion 33 that the movable pressing portion 22 has as a portion forming the pressing surface 10 is a portion that constitutes the swinging pressing body 31 that is pivotally supported by the shaft support portion 37. The swinging support structure of the pressing plate portion 33 is not limited to the pivotal support structure of the unidirectional rotating shaft. The swing support structure of the pressing plate portion 33 may be, for example, a ball joint structure or the like.

  Further, in the above-described embodiment, the crimping jig device 1 is configured as a hand tool including the grip portion 16, but the crimping jig device according to the present invention is supported by a mechanical device such as a robot. The structure used may be sufficient. Therefore, the crimping jig device according to the present invention may be configured as a robot tool that is used by being supported by an articulated robot such as a 6-axis robot.

1 Crimping jig device (bonding parts crimping jig device)
2 bumper (member to be crimped)
2a Mounting hole (hole)
2b Inner surface (pressure-bonded surface)
2d Engaged part 3 Sensor 4 Retainer (adhesive part)
10 Pressing Surface 11 Device Main Body 12 Positioning Pin (Insertion Support)
12a Tapered part 13 Movable base 14 Biasing spring (biasing part, elastic member)
15 Engagement support leg (rotation restriction part)
16 gripping part 21 main body base 22 movable pressing part 33 pressing plate part (pressing piece part)
45 Spring Plunger (Pressure Energizing Part)
50 pin support spring 57 engagement part 80 proximity sensor 100 crimp inspection system

Claims (9)

An adhesive component crimping jig device for crimping an adhesive component to be adhered to a member to be crimped,
An apparatus main body having a pressing surface that presses against the adhesive component to press the adhesive component onto the member to be pressure-bonded,
By being inserted into a hole formed in the member to be pressure-bonded, an insertion support portion that restricts movement in a direction along a surface to be pressure-bonded to which the adhesive component of the device main body is pressure-bonded to the member to be pressure-bonded,
A movable base portion movably provided in a direction along the insertion direction of the insertion support portion with respect to the apparatus main body portion,
An urging portion that urges the device main body portion in a direction of pressing the adhesive component with respect to the movable base portion;
By having an engaging portion that engages with an engaged portion provided in the crimped member, and by engaging the engaging portion with the engaged portion, the device main body portion with respect to the crimped member An adhesive component crimping jig device, comprising: a rotation restricting portion that restricts rotation of the insertion support portion around the axis line along the insertion direction. The adhesive component crimping jig device according to claim 1, wherein the movable base portion is provided with a grip portion. The device body is
A main body base supported with respect to the movable base,
3. A movable pressing portion, which is a portion having the pressing surface and is provided so as to be movable in a direction along the insertion direction with respect to the main body base portion. Adhesive parts crimping jig device. The adhesive component crimping jig device according to claim 3, wherein the movable base portion has a pressing biasing portion that biases the movable pressing portion in a direction of pressing the adhesive component by the pressing surface. The urging portion is composed of an elastic member that increases urging force as the apparatus main body portion and the movable base portion approach each other by relative movement of the apparatus main body portion and the movable base portion in a direction along the insertion direction. And
5. The sensor according to claim 1, further comprising a sensor for detecting that the apparatus main body and the movable base are close to each other in a direction along the insertion direction until a predetermined positional relationship is established. The adhesive component crimping jig device according to item 1. The apparatus main body portion is provided with a plurality of pressing piece portions that are arranged around the insertion support portion and that are independently swingably supported as portions that form the pressing surface. The adhesive component crimping jig device according to any one of claims 1 to 5. The insertion support portion is a columnar portion, and has a tapered shape portion that gradually reduces in diameter from the protruding base end side to the protruding tip end side. Adhesive parts crimping jig device. The adhesive component crimping jig device according to claim 7, wherein the insertion support portion is elastically supported so as to be movable in a direction along the insertion direction with respect to the movable base portion. The adhesive component crimping jig device according to any one of claims 1 to 8, wherein the rotation restricting portion is provided at two locations symmetrically with respect to the position of the axis line. .

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