JP5731050B1 - Press-fitting device, press-fitting method, and holding member - Google Patents

Abstract

A plurality of hollow parts are press-fitted into a metal plate appropriately and quickly. A press-fitting device 1 includes a first transport mechanism 10 that transports a metal plate 80 in which a pilot hole 82 is formed so that the pilot hole 82 is located at a predetermined processing position, and a center in the axial direction. A hollow part 90 having a shaft portion 92 in which a through hole 93 is formed and a flange portion 94 formed on the outer periphery on one end side in the axial direction of the shaft portion 92 is held so that the shaft portion 92 side faces the metal plate 80. When transported to the processing position in a state, the second transport mechanism 20 that releases the holding state of the hollow part 90 and causes the shaft portion 92 to be inserted into the prepared hole 82 and the flange portion 94 to be locked around the prepared hole 82; The metal plate is made by repeating the operations of the press-fitting mechanism 50 that presses and presses the flange portion 94 that is locked around the pilot hole 82, and the first transport mechanism 10, the second transport mechanism 20, and the press-fitting mechanism 50. Control unit for press-fitting a plurality of hollow parts 90 into 80 Including 0 and, the. [Selection] Figure 1

Description

  The present invention relates to a press-fitting device and a press-fitting method for press-fitting a plurality of hollow parts into a metal plate, and a holding member that holds the hollow part conveyed to the press-fitting position.

  Conventionally, a technique for press-fitting hollow parts such as nuts and bearings into a metal plate such as a sheet metal has been used. For example, a machine product is assembled by attaching another member (hereinafter also referred to as an attachment member) to a metal plate via a fastening component such as a nut. In order to efficiently assemble the nut, the nut is preliminarily attached to the metal plate. It is press-fitted into the prepared hole by caulking.

  The press-fitting of the nut into the metal plate is performed through a press-fitting device described in Patent Document 1, for example. The plunger of the press-fitting device pushes the nut supplied through the hose into a predetermined press-fitting position of the flat plate member.

JP-T 8-509172

  By the way, when there are a plurality of mounting members, nuts are respectively press-fitted into the plurality of prepared holes of the metal plate. In such a case, it is necessary to move the metal plate so that the pilot hole for press-fitting the nut is positioned at the press-fitting position, and to transport the hollow part to the press-fitting position. Conventionally, since a person has mounted the metal plate in the press-fitting position, when a plurality of nuts are press-fitted into the metal plate, the processing time becomes long.

  Further, when supplying the hollow part to the press-fitting position, if the posture of the hollow part being conveyed is inclined, the hollow part conveyed to the press-fitting position cannot be press-fitted properly into the metal plate. In particular, in the case of a hollow part, since a through hole is formed along the axial direction, it is difficult to transport the hollow part in an appropriate posture.

  Therefore, the present invention has been made in view of these points, and an object thereof is to press-fit a plurality of hollow parts into a metal plate appropriately and quickly.

  In the first aspect of the present invention, the first transport mechanism for transporting the metal plate in which the pilot hole is formed so that the pilot hole is located at a predetermined processing position, and the through hole in the center along the axial direction A hollow part having a shaft part formed with a flange part formed on the outer periphery of one end side in the axial direction of the shaft part is held at the processing position in a state where the shaft part side is held so as to face the metal plate. When transported, a second transport mechanism that releases the holding state of the hollow part, allows the shaft portion to be inserted into the pilot hole and locks the flange portion around the pilot hole, and around the pilot hole. A plurality of hollow parts are placed on the metal plate by repeating the operations of a press-fitting mechanism that presses and presses the locked flange portion, and the first transport mechanism, the second transport mechanism, and the press-fit mechanism. A press-fitting device including a control unit for press-fitting.

  In the above press-fitting device, the second transport mechanism may include a suction holding mechanism that sucks the flange portion and horizontally holds the hollow part being transported.

  In the above press-fitting device, the suction holding mechanism includes a columnar holding member having a contact surface that comes into contact with the flange portion when sucking, and a suction member connected to the opposite side of the contact surface of the holding member; The holding member may have a plurality of ventilation holes that penetrate from the contact surface to an opposing surface that faces the suction member and that are formed radially and annularly from the center at predetermined intervals.

  In the above press-fitting device, the hollow part may be made of metal, and the holding member may be made of resin.

  In the above press-fitting device, the holding member is detachably mounted on the suction holding mechanism, and the holding member has the large hollow part and the large diameter hollow part having different inner diameters of the through holes. One holding member selected from a first holding member for sucking the hollow hollow part and a second holding member for sucking the small hollow part may be mounted.

  The press-fitting device further includes a moving pin that moves between a first position below the metal plate and a second position protruding upward through the pilot hole of the metal plate, and the control unit includes: When the pilot hole is positioned at the processing position by the first conveying mechanism, the hollow pin is held in the second conveying mechanism after the moving pin is moved from the first position to the second position. The moving pin may be guided so that the shaft portion of the hollow part released from the holding state is inserted through the pilot hole when the moving pin is located at the second position.

  In the above press-fitting device, the moving pin is formed on one end side in the axial direction protruding upward of the metal plate, and has a small diameter portion having an outer diameter smaller than the inner diameter of the through hole of the hollow part, an axial direction, and the like. A large-diameter portion formed on an end side and having an outer diameter larger than the inner diameter of the through-hole, and the large-diameter portion is moved when the moving pin moves from the first position to the second position. You may further provide the guide member to guide.

  In the above press-fitting device, the hollow part may be a nut or a bearing.

  In the second aspect of the present invention, a first transport step for transporting the metal plate in which the pilot hole is formed so that the pilot hole is located at a predetermined processing position by the first transport mechanism, and an axial direction in the center A hollow part having a shaft part in which a through hole is formed along the outer periphery of the shaft part and a flange part formed on the outer periphery on one end side in the axial direction of the shaft part, the shaft part side faces the metal plate by a second transport mechanism. When the workpiece is conveyed to the processing position in such a manner, the holding state of the hollow part is released, and the shaft portion is inserted into the pilot hole and the flange portion is locked around the pilot hole. And a press-fitting step of pressing the flange portion locked around the pilot hole by a press-fitting mechanism, the first transport step, the second transport step, and the press-fitting Repeat the steps Is press fit a plurality of the hollow part to the metal plate provides a press-fit method.

  In the third aspect of the present invention, a hollow part having a shaft portion in which a through hole is formed in the center along the axial direction, and a flange portion formed on the outer periphery of one end side in the axial direction of the shaft portion, A holding member that is detachably attached to a transport mechanism that sucks and holds the flange portion at a press-fitting position where the metal plate is press-fitted, and a contact surface that contacts when the flange portion is sucked, and the contact A plurality of air holes that are located on the opposite side of the surface and that are opposed to the suction members to be connected; and a plurality of ventilation holes that penetrate from the contact surface to the facing surface and that are formed radially and annularly from the center at predetermined intervals. A holding member is provided.

  According to the present invention, there is an effect that a plurality of hollow parts are press-fitted into a metal plate appropriately and quickly.

1 is a front view showing a press-fitting device 1 according to an embodiment of the present invention. 1 is a plan view showing a press-fitting device 1. FIG. It is a figure which shows an example of a structure of the hollow component 90 which concerns on one Embodiment. It is a figure which shows an example of a structure of the holding member 40 which concerns on one Embodiment. It is a figure which shows the state in which the holding member 40 is holding the hollow component 90. FIG. It is a figure for demonstrating the structure of the press injection mechanism 50 and the movement pin 60. FIG. 4 is a flowchart showing the operation of the press-fitting device 1 when press-fitting a plurality of hollow parts 90 into a metal plate 80. It is a figure for demonstrating the operation example of the press injection apparatus. It is a figure for demonstrating the operation example of the press injection apparatus. It is a figure for demonstrating the operation example of the press injection apparatus. It is a figure for demonstrating the operation example of the press injection apparatus. It is a figure for demonstrating the operation example of the press injection apparatus. It is a figure for demonstrating the operation example of the press injection apparatus.

<Configuration of press-fitting device>
An example of the configuration of a press-fitting device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing a press-fitting device 1 according to an embodiment. FIG. 2 is a plan view showing the press-fitting device 1.

  The press-fitting device 1 according to the present embodiment is a device that automatically press-fits a plurality of hollow parts 90 into a metal plate 80. Specifically, the press-fitting device 1 repeats the operation of conveying the metal plate 80 and the hollow part 90 to the processing position and the operation of press-fitting the hollow part 90 into the metal plate 80 at the processing position, respectively. The hollow part 90 is press-fitted into a desired position. In addition, although the hollow component 90 is a nut or a bearing, for example, below, it demonstrates taking a nut as an example.

  As shown in FIGS. 1 and 2, the press-fitting device 1 includes a first transport mechanism 10, a second transport mechanism 20, a holding member 40, a press-fit mechanism 50, a moving pin 60, and a control unit 70. . Each configuration will be described below.

(First transport mechanism 10)
The first transport mechanism 10 sandwiches the metal plate 80 and transports it in the X and Y directions shown in FIG. A pilot hole 82 for press-fitting a hollow part 90 (for example, a nut) is formed in the metal plate 80 in advance, and the first transport mechanism 10 has the pilot hole 82 positioned at a predetermined processing position (press-fit position). Thus, the metal plate 80 is conveyed.

As shown in FIG. 2, the first transport mechanism 10 includes a movable table 11, a guide rail 12, a guide rail 13, a movable member 14, and a clamping unit 15.
The movable table 11 is provided so as to be movable in the X direction along a guide rail 12 provided along the X direction. The guide rail 13 is provided on the movable table 11 along the Y direction. The movable member 14 is supported by the guide rail 13 so as to be movable in the Y direction. The clamping unit 15 is attached to the side surface of the movable member 14 and clamps the metal plate 80.
With this configuration, the movable table 11 and the movable member 14 move in the X direction and the Y direction, so that the prepared hole 82 of the metal plate 80 held by the holding unit 15 is positioned at the processing position P1 (FIG. 1). become.

(Second transport mechanism 20)
The second transport mechanism 20 sucks and holds the sequentially supplied hollow parts 90 and transports the held hollow parts 90 to the processing position. As illustrated in FIG. 2, the second transport mechanism 20 includes a supply mechanism 22 and a suction holding mechanism 30. In FIG. 1, the supply mechanism 22 is not shown for convenience of explanation.

  The supply mechanism 22 supplies the hollow part 90 to the suction position P2 (FIG. 2) where the suction holding mechanism 30 sucks. The supply mechanism 22 includes a storage unit 23 that stores the hollow component 90 and a supply unit 24 that supplies the hollow components 90 stored in the storage unit 23 one by one to the suction position P2. In FIG. 2, two supply mechanisms 22 are shown, and each supply mechanism 22 supplies hollow parts 90 having different sizes, for example. Thereby, the hollow parts 90 having different sizes with respect to the metal plate 80 can be collectively press-fitted.

  Here, an example of the configuration of the hollow part 90 will be described with reference to FIG. FIG. 3 is a diagram illustrating an example of a configuration of the hollow component 90 according to an embodiment. Fig.3 (a) is a front view of the hollow component 90, FIG.3 (b) is AA sectional drawing of the hollow component 90 shown to Fig.3 (a). The hollow component 90 is a nut and includes a shaft portion 92 and a flange portion 94.

  The outer diameter of the shaft portion 92 is smaller than the diameter of the pilot hole 82 of the metal plate 80, and the outer diameter of the flange portion 94 is larger than the diameter of the pilot hole 82. The shaft portion 92 is inserted into the prepared hole 82 when the hollow component 90 is press-fitted into the metal plate 80. A through hole 93 is formed in the center of the shaft portion 92 along the axial direction. The flange portion 94 is formed so as to protrude outward from the outer periphery of one end side in the axial direction of the shaft portion 92. The flange portion 94 is press-fitted by a press-fitting mechanism 50 described later in a state where the flange portion 94 is locked to the periphery of the pilot hole 82 of the metal plate 80. Although not shown in FIG. 3, a screw thread is formed on the inner periphery of the through hole 93 of the shaft portion 92.

  When the hollow part 90 is conveyed to the suction position P2 by the supply mechanism 22, the hollow part 90 is in a horizontal state and the flange portion 94 side is positioned upward. Thereby, the suction of the flange portion 94 by the suction holding mechanism 30 is appropriately performed.

  Returning to FIGS. 1 and 2, the suction holding mechanism 30 will be described. The suction holding mechanism 30 sucks and holds the flange portion 94 of the hollow part 90 supplied to the suction position P2 by the supply mechanism 22, and conveys the held hollow part 90 to the processing position P1 where the pilot hole 82 of the metal plate 80 is located. To do. At this time, the suction holding mechanism 30 conveys the hollow component 90 in a state of being held horizontally so that the shaft portion 92 side of the hollow component 90 faces the metal plate 80.

  The suction holding mechanism 30 releases the holding state of the hollow part 90 when the hollow part 90 is conveyed to the processing position. As a result, the shaft portion 92 drops and passes through the prepared hole 82 of the metal plate 80, and the flange portion 94 is locked around the prepared hole 82. By such a suction holding mechanism 30, the hollow part 90 in which the through hole 93 is formed can be conveyed in a stable posture, and as a result, can be locked in the prepared hole 82 in an appropriate state.

The suction holding mechanism 30 includes a guide rail 32, a movable part 33, an arm part 34, a suction part 35, and a holding member 40.
The guide rail 32 is provided along the Y direction shown in FIG. The movable portion 33 is supported by the guide rail 32 so as to be movable in the Y direction. The arm portion 34 is configured to be movable together with the movable portion 33, and is configured to be extendable and contractable to be movable in the X direction shown in FIG. The suction part 35 has a vacuum suction device, for example, and sucks the flange part 94 of the hollow part 90 located at the suction position P2. The holding member 40 is provided at the tip of the arm portion 34 and contacts and holds the flange portion 94 sucked by the suction portion 35.
With this configuration, the movable part 33 and the arm part 34 move in the X direction and the Y direction, whereby the hollow part 90 located at the suction position P2 can be sucked and held and transported to the processing position P1.

(Holding member 40)
A detailed configuration of the holding member 40 will be described with reference to FIGS. 4 and 5. FIG. 4 is a diagram illustrating an example of a configuration of the holding member 40 according to the embodiment. FIG. 5 is a view showing a state in which the holding member 40 holds the hollow part 90. 4A is a front view of the holding member 40, and FIG. 4B is a cross-sectional view taken along line BB of the holding member 40 shown in FIG. 4A.

  The holding member 40 is attached to the arm portion 34 in a state where the holding member 40 is connected by a tube or the like of the suction portion 35. As shown in FIG. 4, the holding member 40 is a columnar member. The holding member 40 includes a contact surface 42, a fitting recess 43, a vent hole 44, and a fixing hole 45.

  The contact surface 42 is an end surface on one end side in the axial direction and is larger than the flange portion 94 of the hollow component 90. As shown in FIG. 5, the contact surface 42 contacts the flange portion 94 when the suction portion 35 sucks the hollow part 90.

  The fitting recess 43 is a portion formed in a concave shape on the opposite side of the contact surface 42. As shown in FIG. 5, the fitting recess 43 is fitted with the suction shaft 36 of the suction portion 35 that is a suction member. The suction shaft 36 faces the facing surface 46 opposite to the contact surface 42. The suction shaft 36 is connected to a tube connected to a vacuum pump or the like via a joint or the like. The suction shaft 36 has a hole 36a penetrating along the axial direction, and air is sucked from the hole 36a.

  The ventilation hole 44 is a through-hole penetrating from the contact surface 42 to the opposing surface 46 as shown in FIG. As shown in FIG. 5, the vent hole 44 is formed on the outer side of the through hole 93 of the hollow part 90 in the radial direction and at a position facing the flange portion 94. As a result, air is sucked through the vent hole 44 and the hole 36 a of the suction shaft 36 and is attracted to the flange portion 94 by the contact surface 42. Further, as shown in FIG. 4A, a plurality of vent holes 44 are formed radially from the center and annularly at a predetermined interval. Thereby, since the whole surface of the flange part 94 can be attracted | sucked uniformly, the hollow component 90 can be hold | maintained stably.

  The fixing hole 45 is a hole penetrating from the outer peripheral surface to the fitting recess 43. A fixing pin 37 is inserted into the fixing hole 45 as shown in FIG. The fixing pin 37 fixes the holding member 40 and the suction shaft 36 by fitting with a recess 36 b formed on the peripheral surface of the suction shaft 36 to be fitted with the fitting recess 43.

  The holding member 40 is an elastic body, and is specifically made of a resin such as urethane. On the other hand, the hollow component 90 described above is made of metal. For this reason, the contact surface of the holding member 40 made of resin is more likely to be in close contact with the hollow part 90 as compared with the case of being made of metal, so that the hollow part 90 can be sucked and held appropriately. Further, since the holding member 40 is made of resin, it is possible to prevent the hollow part 90 from being damaged when sucked.

  The holding member 40 is detachably attached to the tip of the arm portion 34. That is, the holding member 40 is a replacement part, and can be replaced when it is consumed, for example. Further, the holding member 40 having a different size may be attached to the arm portion 34 in accordance with the hollow part b90 to be sucked. For example, a holding member (first holding member) for sucking a hollow part 90 (large diameter hollow part) having a large inner diameter of the through hole 93 and a hollow part 90 (small diameter hollow part) having a small inner diameter of the through hole 93 are sucked. One holding member selected from the holding members (second holding members) for doing so may be attached to the arm portion 34. Thereby, the hollow part 90 of various sizes can be appropriately sucked and held and transported simply by exchanging the holding member 40.

(Press-fit mechanism 50)
A detailed configuration of the press-fitting mechanism 50 will be described with reference to FIG. FIG. 6 is a view for explaining the configuration of the press-fitting mechanism 50 and the moving pin 60.

  The press-fitting mechanism 50 sandwiches and presses the metal plate 80 and the hollow component 90 so as to press-fit the hollow component 90 into the metal plate 80. In the present embodiment, the press-fit mechanism 50 presses and press-fits the flange portion 94 that is locked to the pilot hole 82 of the metal plate 80 at the processing position. The press-fitting mechanism 50 includes a press-fitting member 52, a press-fitting drive unit 54 (FIG. 1), and a support member 56.

  The press-fitting member 52 is located above the metal plate 80 and the hollow part 90 located at the processing position. The press-fitting member 52 is driven by a press-fitting drive unit 54 including a hydraulic cylinder, for example, and moves up and down in the Z direction shown in FIG. The press-fitting member 52 moves up and down between a standby position (position shown in FIG. 1) and a pressing position that presses the flange portion 94 of the hollow part 90. The press-fitting member 52 stands by at the standby position when the first transport mechanism 10 and the second transport mechanism 20 operate. A press-fit head 53 larger than the flange portion 94 is provided at the tip of the press-fit member 52.

  The support member 56 is positioned below the metal plate 80 and the hollow part 90 positioned at the press-fitting position. The support member 56 is driven by a drive unit (not shown) (including a hydraulic cylinder, for example) and moves up and down in the Z direction shown in FIG. The support member 56 moves up and down between a standby position (position shown in FIG. 1) and a support position that supports the shaft portion 92 and the metal plate 80 of the hollow component 90. When the support member 56 is located at the support position, the support member 56 cooperates with the press-fit member 52 located at the press-fit position to press the metal plate 80 and the hollow part 90 therebetween. A through hole 57 is formed in the center of the support member 56 along the axial direction to guide the movement of the moving pin 60.

(Moving pin 60)
The moving pin 60 is a long pin that is movable in the Z direction shown in FIG. The moving pin 60 has a relationship of being located on the same line in the Z direction together with the press-fitting member 52 and the support member 56. As shown in FIG. 6, the moving pin 60 has a small diameter portion 61 and a large diameter portion 62.

  The small diameter portion 61 is formed on one end side (front end side) in the axial direction, and has an outer diameter smaller than the inner diameter of the through hole 93 of the hollow component 90. The large diameter portion 62 is formed on the other axial end side and has an outer diameter larger than the inner diameter of the through hole 93. The outer diameter of the large diameter portion 62 is smaller than the inner diameter of the through hole 57 of the support member 56 described above.

  The moving pin 60 is driven by a driving unit (not shown) to which the connecting unit 63 is connected, and protrudes upward through a standby position (first position) below the metal plate 80 and a lower hole 82 of the metal plate 80. It moves between the guide position (second position). The standby position is a position below the standby position of the support member 56 as shown in FIG. The guide position is a position where the small-diameter portion 61 protrudes above the support member 56 at the support position.

  When the small-diameter portion 61 of the moving pin 60 is located at the guide position, the small-diameter portion 61 is inserted through the through-hole 93 of the hollow component 90 that is dropped when the holding state is released. As a result, the shaft portion 92 of the hollow component 90 is guided to the small diameter portion 61 and drops, and the metal plate 80 is inserted through the prepared hole 82. That is, the moving pin 60 has a function of guiding the shaft portion 92 of the hollow part 90 released from the holding state so as to pass through the prepared hole 82. Thereby, since the hollow component 90 falls toward the metal plate 80 in a state in which the hollow component 90 is maintained in a horizontal state with respect to the metal plate 80, it is possible to prevent the shaft portion 92 from being inserted into the prepared hole 82.

  When the moving pin 60 moves from the standby position to the guide position, the large diameter portion 62 is guided by the through hole 57 of the support member 56. That is, the support member 56 has a function of a guide member that guides the large-diameter portion 62 when the moving pin 60 moves from the standby position to the guide position. Thus, since the long moving pin 60 can be prevented from falling when the moving pin 60 moves from the standby position to the guide position, the through-hole 93 of the hollow component 90 that falls when the moving pin 60 is located at the guide position can be reduced in diameter. It is possible to prevent 61 from being inserted.

(Control unit 70)
Returning to FIG. 1 and FIG. 2, the control unit 70 will be described. The control unit 70 is mounted inside the press-fitting device 1 and controls the overall operation of the press-fitting device 1. The control unit 70 causes the press-fitting device 1 to execute an operation by executing a program stored in the storage unit. In the present embodiment, the control unit 70 press-fits the plurality of hollow parts 90 into the metal plate 80 by repeating the operations of the first transport mechanism 10, the second transport mechanism 20, and the press-fit mechanism 50. Accordingly, a plurality of hollow parts 90 can be automatically press-fitted into the metal plate 80, so that the processing time can be shortened.

  Further, when the control unit 70 moves the prepared pin 82 to the processing position by the first transport mechanism 10, the control unit 70 moves the moving pin 60 from the first position to the second position, and then moves the hollow part 90 to the second transport mechanism 20. Release the holding state. Thereby, the flange portion 94 of the hollow part 90 to be press-fitted can be automatically set in the prepared hole 82 of the metal plate 80.

<Operation of press-fitting device>
An example of the operation of the press-fitting device 1 when press-fitting a plurality of hollow parts 90 into the metal plate 80 will be described with reference to FIGS. 7 and 8A to 8F. FIG. 7 is a flowchart showing the operation of the press-fitting device 1 when press-fitting a plurality of hollow parts 90 into the metal plate 80. 8A to 8F are diagrams for explaining an operation example of the press-fitting device 1.

  The flowchart shown in FIG. 7 is started from setting the metal plate 80 into which the hollow part 90 is press-fitted into the first transport mechanism 10 (step S102). The metal plate 80 is set at the reference position shown in FIG. It is assumed that a plurality of pilot holes 82 are formed in the metal plate 80. If the metal plate 80 is a component to be processed for the first time, the operator operates, for example, an input unit (not shown) to input position information regarding the position of the pilot hole 82 of the metal plate 80. The input position information of the prepared hole 82 is stored in the storage unit.

  Next, the control unit 70 refers to the position information stored in the storage unit and causes the first transport mechanism 10 to transport the metal plate 80 so that the prepared hole 82 is positioned at the machining position (step S104). That is, as the movable table 11 and the movable member 14 move, the pilot hole 82 of the metal plate 80 is positioned at the machining position as shown in FIG. 8A. The pilot hole 82 is, for example, a hole closest to the processing position when the metal plate 80 is positioned at the reference position. In such a case, the conveyance amount by the first conveyance mechanism 10 can be reduced.

  Next, the control unit 70 causes the supply mechanism 22 (see FIG. 2) of the second transport mechanism 20 to supply the hollow part 90 accommodated in the accommodation unit 23 to the suction position via the supply unit 24. The hollow component 90 supplied to the suction position is in a horizontal state, and the flange portion 94 side is positioned upward. And the control part 70 attracts | sucks the hollow component 90 of a suction position by the suction holding mechanism 30 (step S106). That is, as the movable portion 33 and the arm portion 34 move, the flange portion 94 of the hollow component 90 is held by the holding member 40 of the suction holding mechanism 30 as shown in FIG. 8A.

  Next, the control unit 70 causes the suction holding mechanism 30 to transport the hollow part 90 to the processing position while being held horizontally by the holding member 40 (step S108). That is, by moving the movable part 33 and the arm part 34, the hollow part 90 is positioned at the machining position as shown in FIG. 8B.

  Next, the control unit 70 moves the moving pin 60 located at the standby position to the guide position (step S110). At this time, the large-diameter portion 62 of the moving pin 60 is guided by the support member 56, and the small-diameter portion 61 protrudes above the metal plate 80 through the lower hole 82 as shown in FIG. 8B. In the above description, step S110 is performed after step S108. However, the present invention is not limited to this. For example, step S108 and step S110 may be performed simultaneously. Or step S108 may be performed after step S110.

  Next, the control unit 70 releases the suction of the suction holding mechanism 30 with respect to the hollow part 90 at the processing position (step S112). As a result, the hollow part 90 falls while being guided by the small diameter portion 61, and the shaft portion 92 is inserted into the lower hole 82 and the flange portion 94 is locked around the lower hole 82 as shown in FIG. 8C. .

  Next, as shown in FIG. 8D, the control unit 70 retracts the suction holding mechanism 30 from the processing position and moves the moving pin 60 from the guide position to the standby position. And the control part 70 press-fits the hollow component 90 in the metal plate 80 by the press-fit mechanism 50 (step S114). That is, as shown in FIG. 8E, the control unit 70 moves the press-fitting member 52 to the press-fitting position and moves the support member 56 to the support position, and presses the metal plate 80 and the hollow part 90 therebetween. As a result, the flange portion 94 is press-fitted around the pilot hole 82, and the hollow component 90 is joined to the metal plate 80.

  Next, the control part 70 repeats operation | movement of step S104-S114 mentioned above, when there exists the pilot hole 82 which press-fits the hollow component 90 (step S116: Yes). That is, as shown in FIG. 8F, the metal plate 80 is conveyed so that the pilot hole 82 into which the hollow part 90 is next press-fitted is located at the processing position. Thereafter, similarly, the hollow part 90 is sucked and held, conveyed to the processing position, and press-fitted.

  On the other hand, when the hollow part 90 is press-fitted into all the prepared holes 82 (step S116: No), the control unit 70 conveys the metal plate 80 to the reference position (step S118). Then, the metal plate 80 is released from the holding portion 15 and removed. Thereby, the press-fitting of the hollow part 90 into the metal plate 80 is completed. Then, also about the next metal plate 80, the hollow parts 90 are automatically press-fitted by performing steps S102 to S118 described above.

<Effect of this embodiment>
In the press-fitting device 1 according to the present embodiment described above, the control unit 70, as shown in FIGS. 7 and 8A to 8F, conveys the metal plate 80 so that the pilot hole 82 is located at the machining position. 10. The operation of the second conveying mechanism 20 that conveys the hollow part 90 to the processing position and the press-fitting mechanism 50 that presses and presses the flange portion 94 that is locked around the pilot hole 82 are repeated, so that the metal plate 80 A plurality of hollow parts 90 are press-fitted.
In the case of this press-fitting method, the plurality of prepared holes formed in the metal plate 80 can be automatically moved to the processing position and the hollow part 90 can be sequentially conveyed to the processing position. Can be press-fitted into the metal plate 80. As a result, the processing time required for press-fitting the hollow part 90 can be greatly shortened.

Further, in the present embodiment, as shown in FIGS. 8A and 8B, the second transport mechanism 20 is configured such that the hollow part 90 is held in a state where the shaft portion 92 in which the through hole 93 is formed faces the metal plate 80. Is transferred to the machining position.
As a result, since the hollow part 90 is conveyed in a horizontal state with respect to the metal plate 80, as shown in FIG. 8C, when the shaft portion 92 released from the holding state at the processing position falls, the pilot hole 82 is dropped. Easy to be inserted into. As a result, it is possible to prevent the shaft portion 92 from being inserted into the prepared hole 82 and being press-fitted with automation.

In the present embodiment, as shown in FIG. 4, the holding member 40 has a vent hole 44 that penetrates from the contact surface 42 that contacts when the flange portion 94 is sucked to the facing surface 46 that faces the suction shaft 36. A plurality. The plurality of vent holes 44 are formed radially and annularly from the center at predetermined intervals.
Thereby, it is possible to appropriately suck and hold the hollow component 90 in which the through hole 93 is formed at the center and the portion to be held is limited with a simple configuration. As a result, as shown in FIG. 8B, the hollow part 90 can be conveyed to the processing position in a horizontal state, and the hollow part 90 can be appropriately press-fitted into the metal plate 80.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Press injection apparatus 10 1st conveyance mechanism 20 2nd conveyance mechanism 30 Suction holding mechanism 35 Suction part 36 Suction shaft 40 Holding member 42 Contact surface 44 Vent hole 46 Opposite surface 50 Press-in mechanism 56 Support member 60 Moving pin 61 Small diameter part 62 Large diameter Part 70 Control part 80 Metal plate 82 Pilot hole 90 Hollow part 92 Shaft part 93 Through hole 94 Flange part

Claims (10)

A first transport mechanism for transporting the metal plate in which the pilot hole is formed so that the pilot hole is located at a predetermined processing position;
A hollow part having a shaft part in which a through hole is formed in the center along the axial direction and a flange part formed on the outer periphery on one axial end side of the shaft part so that the shaft part side faces the metal plate When the workpiece is transported to the processing position while being held in a state, the holding state of the hollow part is released and dropped, so that the shaft portion is inserted into the pilot hole and the flange portion is locked around the pilot hole. A second transport mechanism for causing
A press-fitting mechanism for press-fitting the flange part locked around the pilot hole;
A controller that press-fits the plurality of hollow parts into the metal plate by repeating the operations of the first transport mechanism, the second transport mechanism, and the press-fit mechanism;
A press-fitting device. The second transport mechanism has a suction holding mechanism that sucks the flange portion and horizontally holds the hollow part being transported,
The press-fitting device according to claim 1. The suction holding mechanism is
A columnar holding member having a contact surface that contacts the flange portion when sucking;
A suction member connected to the opposite side of the contact surface of the holding member;
With
The holding member penetrates from the contact surface to a facing surface facing the suction member, and has a plurality of vent holes formed radially and annularly at predetermined intervals from the center.
The press-fitting device according to claim 2. The hollow part is made of metal,
The holding member is made of resin.
The press-fitting device according to claim 3. The holding member is detachably attached to the suction holding mechanism,
As the holding member, a first holding member for sucking the large-diameter hollow component of a large-diameter hollow component and a small-diameter hollow component having different inner diameters of the through holes, and a first for sucking the small-diameter hollow component, respectively. One holding member selected from the two holding members is mounted.
The press-fitting device according to claim 3 or 4. A moving pin that moves between a first position below the metal plate and a second position protruding upward through the pilot hole in the metal plate;
The controller is
When the pilot hole is positioned at the processing position by the first transport mechanism, the holding state of the hollow part is set in the second transport mechanism after the moving pin is moved from the first position to the second position. Let go,
When the moving pin is positioned at the second position, the shaft pin of the hollow part released from the holding state is guided so as to pass through the pilot hole.
The press-fitting device according to any one of claims 1 to 5. The moving pin is
A small diameter portion formed on one end side in the axial direction projecting upward of the metal plate, and having an outer diameter smaller than the inner diameter of the through hole of the hollow part;
A large diameter portion formed on the other end side in the axial direction and having an outer diameter larger than the inner diameter of the through hole,
A guide member for guiding the large-diameter portion when the moving pin moves from the first position to the second position;
The press-fitting device according to claim 6. The hollow part is a nut or a bearing,
The press-fitting device according to any one of claims 1 to 7. A first transport step of transporting the metal plate in which the pilot hole is formed so that the pilot hole is located at a predetermined processing position by a first transport mechanism;
A hollow part having a shaft part in which a through hole is formed in the center along the axial direction and a flange part formed on the outer periphery of one end side in the axial direction of the shaft part, the shaft part side is When transported to the machining position while being held facing the metal plate, the hollow part is released and released, thereby allowing the shaft part to be inserted into the pilot hole and the flange part to be the pilot hole. A second conveying step for locking around
A press-fitting step in which the flange portion locked around the pilot hole is pressed by a press-fitting mechanism;
Have
A press-fitting method in which the first transport step, the second transport step, and the press-fitting step are repeated to press-fit a plurality of the hollow parts into the metal plate. A shaft portion having a through hole along the axial direction is formed in a center, a hollow metal part having a flange portion formed on an outer periphery of the axial end of the shaft portion, the press-fitting position pressed into the metal plate A holding member made of resin, which is detachably mounted on a transport mechanism that sucks and holds the flange portion.
A contact surface that contacts when the flange portion is sucked;
A facing surface that is located on the opposite side of the contact surface and faces the suction member to be connected;
A plurality of ventilation holes penetrating from the contact surface to the opposing surface, radially and annularly from the center, and at predetermined intervals;
A holding member.

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