JP5057013B2 - Automatic rivet caulking device - Google Patents

Description

  The present invention relates to an automatic rivet caulking device capable of automatically performing riveting on the front and back of various members such as a vehicle cross member.

When riveting is performed on the front and back of a member such as a vehicle cross member, for example, a member is hung, and an operator directly supports the member and caulks the rivet. However, such work is performed on the line, and the reaction during the work is large. If the members are not firmly held down, there is a concern about quality defects and effects on the human body. For this reason, there is a need for an apparatus that can perform a rivet caulking operation as automatically as possible without requiring the operator to support the member.
In response to such a demand, an apparatus that automatically performs rivet caulking work has been proposed. For example, in Patent Document 1, a work is held on an index table, and the work is placed at an appropriate position by moving the index table to enable automatic caulking by a rivet caulking machine.
JP 2001-179382 A

However, the conventional caulking device does not support a member for caulking rivets on the front and back, and if caulking work is performed on this member, it is necessary to manually move the member and turn it over. Therefore, the above-mentioned demand cannot be met.
The present invention has been made against the background of the above circumstances, and automatic rivet caulking capable of automatically performing rivet caulking work on the front and back surfaces without requiring support from the operator or the like. An object is to provide an apparatus.

That is, among the automatic rivet caulking devices according to the present invention, the invention according to claim 1 is a workpiece holding unit that holds a workpiece, an index table that includes the workpiece holding unit and is movable in the XYZ axial directions, and the index table. An automatic rivet caulking device comprising a movement control unit for controlling the movement of the rivet and a rivet caulking unit capable of caulking a rivet against the front and back of the work held by the work holding unit,
The index table is provided with a workpiece holding unit rotation mechanism that allows the workpiece holding unit to rotate about an axis in the Y-axis direction so as to reverse the front and back surfaces of the workpiece held by the workpiece holding unit, the work holding unit work holder is provided for holding the workpiece, the said workpiece holding portion, rivet falling-off preventing means for preventing the inserted rivet to the workpiece falling out when the holding unit is the rotation And a work payout mechanism for paying out the work on which the rivet has been caulked from the work holding unit to the work payout portion.

  According to a second aspect of the invention, there is provided an automatic rivet caulking device according to the first aspect of the present invention, wherein the workpiece holding unit is held by a first operation command and the workpiece holding unit rotating mechanism is set by a second operation command. The work holding unit is rotated, and the rivet inserted into the work is prevented from falling off by the rivet fall-off preventing means, and the work on which the rivet is caulked by the work dispensing mechanism according to a third operation command is held by the work. The apparatus control part which makes it pay | pay to a workpiece | work discharge part from a unit is provided.

  According to a third aspect of the present invention, there is provided the automatic rivet caulking device according to the second aspect, wherein each of the operation commands is issued based on an operation of an operation unit operated by an operator.

  The automatic rivet caulking device according to a fourth aspect of the present invention is the rivet according to any one of the first to third aspects, wherein the rivet fall-off preventing means moves to a site where the rivet inserted into the workpiece does not fall off. It consists of a drop-off prevention guide.

  According to the present invention, when a work is held by the work holding part of the work holding unit and rivets are caulked on the front and back, the work is rotated together with the work holding unit by the work holding unit rotating mechanism. At this time, the rivet inserted into the workpiece is prevented from falling off by the rivet fall-off preventing means at the portion rotating to the back side, and the rivet caulking unit efficiently rotates the rivet on the front and back with the workpiece rotating. It can be carried out. This reduces the burden on the worker and improves safety. The work with the rivets caulked on the front and back is paid out to the paying part by the work paying mechanism, and much of the manual work is omitted.

  In the above operation, for example, a command can be issued by an operator operating an operation unit such as an operation button. For example, the workpiece is held by the workpiece holding unit according to the first operation command, and the rotation operation of the workpiece holding unit and the operation of the rivet drop-off preventing means are performed according to the second operation command. In the automatic rivet caulking device, after performing the above operation after the second operation command, rivet caulking can be automatically performed by the third operation command. At this time, when the front and back rivets are caulked, the work holding unit can be rotated again. For a work for which rivet caulking has been performed, the work is paid out to the work payout section. The operation command can be performed by giving a command signal to each actuator or the like through the device control unit. The device control unit can be configured by, for example, a CPU and a program (computer or the like) that operates the CPU. The operation command may be issued based on an operator (operator) operating an operation unit such as an operation button.

The index table fixes and holds the workpiece and the workpiece, and includes a holding unit and the like. Index table, the processing time of such have been made indexing position, in which the positioning relative to the rivet swaging unit is made. In the present invention, the index table can be moved in the XYZ axis directions, and the position in each axis direction is determined while moving. The movement in the XYZ-axis directions may be a movement of part of the index table in addition to the movement of the entire index table. For example, the entire index table may move in the XZ axis direction, and a part of the index table may move in the Y axis direction. These movements are made on the basis of the caulking unit, and the rivet caulking position is made accurate by positioning during machining. The moving means of the index table is not particularly limited and can be performed using an appropriate actuator or the like. Note that the X axis corresponds to the direction of moving relative to the rivet caulking unit, the Y axis is the direction orthogonal to the X axis, and the direction of moving toward and away from the rivet caulking unit, and the Z axis is It is in the vertical direction and consists of directions orthogonal to the X axis and the Y axis.

  The movement control unit for controlling the movement of the index table can control the movement by giving a control signal to a moving means such as an actuator for moving the index table. The movement control unit can be configured by, for example, a CPU and a program (computer or the like) that operates the CPU. Note that the device control unit and the movement control unit described above may be provided as separate components, or may have a control unit that also serves as both.

  Further, the work subject to rivet caulking is not particularly limited as long as rivet caulking is planned on the front and back sides, and the present invention is not particularly limited, and is applied to members for various uses. be able to.

  The work holding unit provided in the work holding unit is not limited to a specific one as long as the definition holding means is selected according to the type of the work. As a holding method, an appropriate method such as holding and chucking can be adopted. However, the workpiece holding unit needs to be able to reliably hold the workpiece as the workpiece holding unit rotates.

  The work holding unit is provided in the index table, and moves together with the index table in the XYZ axial directions. The work holding unit is rotatable by a work holding unit rotating mechanism around an axis in the Y-axis direction, and is configured by an appropriate rotation driving means, a driving force transmission mechanism, or the like.

  The rivet drop prevention means may be any means that can prevent the rivet inserted on the front side of the workpiece from moving off when the workpiece holding unit rotates, and its configuration is particularly limited. Not. For example, it can be configured to prevent the drop by preventing the rivet from moving from the head surface side of the rivet.

  The workpiece payout mechanism is not particularly limited as long as it can move the work for which rivet caulking has been completed to the work payout portion at a predetermined position, and an appropriate movement such as slide movement or handling is possible. Payout can be made depending on the form.

As described above, according to the automatic rivet caulking device of the present invention, the workpiece holding unit that holds the workpiece, the index table that includes the workpiece holding unit and is movable in the XYZ-axis direction, and the movement of the index table. a movement control unit for controlling, an automatic rivet setting tool device and a rivet swaging unit capable caulking rivets to the front and back of the work held on the work holding unit, the index table, the work holding unit A workpiece holding unit rotating mechanism is provided that allows the workpiece holding unit to rotate about an axis in the Y-axis direction so as to invert the front and back surfaces of the workpiece held on the workpiece. The workpiece holding unit holds the workpiece. A workpiece holding unit is provided, and the workpiece holding unit includes the holding unit. Tsu bets have the inserted rivet workpiece rivet falling-off preventing means for preventing the coming off is provided at the time of the rotation, further, the workpiece caulking the rivet is made from the work holding unit to the work delivery unit Since the work paying mechanism for paying out is provided, it is possible to perform the caulking work efficiently on the work requiring rivet caulking on the front and back sides while minimizing the manual work of the operator.

Hereinafter, an embodiment of the automatic rivet caulking device 1 of the present invention will be described.
The automatic rivet caulking device 1 has a device control unit 2 that controls the entire device, and the device control unit 2 includes a CPU and a program that operates the CPU.
The automatic rivet caulking device 1 includes a caulking unit 10, an index table 20, a work holding unit 30, a work holding unit 40, a work holding unit rotating mechanism 25, a rivet drop-off preventing unit 50, and a work paying out mechanism 60 as main components. Each of them is controlled by the apparatus control unit 2 as shown in FIG. Hereinafter, each configuration will be described in detail.

As shown in FIGS. 1 and 2, the caulking unit 10 is rotatably installed on a caulking unit base 13 via a rotating shaft 12 connected to a caulking portion rotating actuator 11 that is a rotation driving means. A caulking portion 14 for caulking with rivets is provided. As shown in FIG. 2, the caulking portion 14 is rivet caulked between the punch 14 a lowered by the caulking drive means 15 and the die 14 b.
The caulking unit 10 is rotated and caulked by controlling the caulking portion rotating actuator 11 and the caulking driving means 15 by the device control unit 2.

Further, as shown in FIG. 1, the automatic rivet caulking device 1 has an index table 20 that can move on the XYZ axes with respect to the caulking unit 10. The index table 20 is slidably movable in the direction (X-axis direction) with respect to the caulking unit 10 on the apparatus base 3 of the automatic rivet caulking apparatus 1 and is constituted by a motor or the like. It is moved by the slide drive means not.
Further, as shown in FIG. 3, the index table 20 is installed on the table column 21 so as to be movable up and down, and the vertical movement actuators 22 and 23 are attached, and the operation rods 22 a and 23 a are attached to the table column 21. It is fixed. Therefore, the index table 20 can be moved in the vertical direction (Z-axis direction) by operating the vertical movement actuators 22 and 23 to expand and contract the operating rods 22a and 23a. The vertical movement actuators 22 and 23 are connected to the apparatus control unit 2 to control the vertical movement.

Further, on the index table 20, a rotating rod 26 extends and contracts in a direction perpendicular to the X-axis direction (Y-axis direction) and is supported so as to be rotatable about the Y-axis. 26 is connected to the rotation actuator 27 and is configured to be driven to rotate about the Y axis as a central axis.
In the middle of the rotating rod 26, a work holding unit substrate 31 constituting a part of the index table 20 is fixed along the X-axis direction so as to rotate together with the rotating rod 26. In addition, a work holding part substrate 41 that also constitutes a part of the index table 20 is fixed along the X-axis direction at the tip of the rotary rod 26 so as to rotate together with the rotary rod 26.

Two Y-axis direction moving actuators 32 and 33 are attached to the work holding unit substrate 31 with the rotating rod 26 in between, and the tips of the respective operating rods 32a and 33a are attached to the work holding unit substrate 41. Yes. Therefore, the workpiece holding portion substrate 41 can be moved along the Y-axis direction by the Y-axis direction moving actuators 32 and 33 as a part of the index table 20 . When moving in the Y-axis direction, the rotating rod 26 expands and contracts along the Y-axis direction. The rotating actuator 27 and the Y-axis direction moving actuators 32 and 33 are connected to the device control unit 2 and their operations are controlled by the device control unit 2.
The work holding unit substrate 31 described above, the Y-axis direction moving actuators 32 and 33, and the work holding unit 40 described later constitute the work holding unit 30 of the embodiment of the present invention. Functions as a workpiece holding unit rotating mechanism 25 for rotating the workpiece holding unit 30.

Further, as shown in FIGS. 4 and 5, a work holding arm 61 is provided on the front side of the work holding unit substrate 41 so as to also serve as a work paying-out mechanism, and the work holding arm 61 is a payout actuator. It is connected to 62 so that it can be moved in the front-rear direction and rotated in an inclined manner.
Further, workpiece holding plates 44 and 45 and workpiece holding plates 46 and 47 that are vertically opposed to each other are disposed on both sides of the workpiece holding unit substrate 41 on the front side. The workpiece holding plates 44 and 46 are attached to the workpiece holding portion substrate 41, while the workpiece holding plates 45 and 47 are actuating rods 48a of workpiece holding actuators 48 and 49 fixed to the workpiece holding plates 44 and 46, respectively. 49a. The workpiece holding plates 45 and 47 can move to and away from the other workpiece holding plates 44 and 46 by the operation of the actuators 48 and 49 to hold and release the workpiece 100 described later.
The above-described work holding part substrate 41, work holding arm 61, work holding plates 44, 45, 46, 47, and holding actuators 48, 49 constitute the work holding part 40 of the embodiment of the present invention. The work holding arm 61 described above constitutes a work paying mechanism 60 together with the paying actuator 62.
The workpiece holding actuators 48 and 49 and the dispensing actuator 62 described above are connected to the apparatus controller 2 as shown in FIG. 6 and their operations are controlled.

Also, rivet drop prevention actuators 51 and 52 are attached to the upper surfaces of the work holding plates 44 and 46, and the rivet drop prevention guides 53 and 54 are rotatable on the respective rotation operating rods 51a and 52a. Installed on. The rivet drop-off prevention guides 53 and 54 have a configuration in which a vertical rod is connected to the tip of a horizontal rod, and horizontal guide plates 53a and 54a that extend in the outer peripheral direction are connected to the lower end of the vertical rod, and rotate. At a predetermined rotational position rotated by the rods 51a and 52a, a rivet inserted into the workpiece 100 described later is configured to cover from the surface side. The above-described rivet drop prevention actuators 51 and 52 and the rivet drop prevention guides 53 and 54 constitute the rivet drop prevention means 50 according to the embodiment of the present invention. The rivet drop-off prevention actuators 51 and 52 are connected to the apparatus control unit 2 and their operations are controlled.
In addition, on the front side of the work holding portion 40, a pay-out inclined rail 71 that inclines forward and downward faces, and a work receiving plate 72 is disposed at the front of the pay-out inclined rail 71 so that the work pay-out portion 70 is disposed. Is configured.

The automatic rivet setting tool device 1 is provided with an operation button 4, and Misao Sakubotan 5,5 that consists in a pair of buttons for operating the device as an operation unit, the operation buttons on the Equipment Controller 2 Connected and the push button state is detected.

Next, the operation of the automatic rivet caulking device 1 will be described with reference to the flowchart of FIG.
As a workpiece 100, a cross member 101, upper gussets 102, 102 and lower gussets 103, 103 disposed on both front and back ends of the cross member 101, and upper rivets 104 ... 104 for fixing the cross member and gusset to the lower side Rivet 105 ... 105 is prepared.

First, when an operator (operator) pushes the operation button 4, push button information is notified to the apparatus control unit 2. In this operation, the workpiece holding unit 30 and the workpiece holding unit 40 are in a standby state (step s1), and the apparatus control unit 2 moves the workpiece holding unit substrate 41 in the Y-axis direction by the Y-axis direction moving actuators 32 and 33. The workpiece holding plates 45 and 47 are separated from the workpiece holding plates 44 and 46 by the workpiece holding actuators 48 and 49 so that the workpiece 100 can be installed. If necessary, the vertical movement actuators 22 and 23 are controlled to adjust the position of the index table 20 in the Z-axis direction. If necessary, the index table 20 is moved in the X-axis direction by a slide driving means (not shown). Therefore, the device control unit 2 also functions as a movement control unit that controls the XYZ axis movement of the index table 20.

Next, the upper gussets 102 and 102 are installed on the workpiece holding plates 44 and 46, respectively, and further, the cross member 101 and the lower gussets 103 and 103 are installed thereon and on the workpiece holding arm 61 ( Step s2). Thereafter, when the operation button 4 is pressed, the push button information is notified to the apparatus control unit 2, and the work holding actuators 48 and 49 are controlled as the first operation command to lower the work holding plates 45 and 47. The side gussets 103 and 103, the cross member 101, and the upper gussets 102 and 102 are held between the workpiece holding plates 44 and 45 and the workpiece holding plates 46 and 47 (step s3). Next, the operator inserts the lower rivet 105 for the lower gussets 103, 103 into the rivet holes 101a ... 101a from the upper side of the cross member 101 (step s4). The rivets 105... 105 can be inserted before holding the workpiece in step s3.

  When the operation buttons 5 and 5 are pushed after inserting the lower rivets 105... 105 (step s5), the push button information is notified to the device control unit 2, and the rivet drop-off prevention actuator 51, as a second operation command, 52, the rivet drop prevention guides 53 and 54 are rotated, and the guide plates 53a and 54a are moved to the upper surface side of the heads of the lower rivets 105... 105 inserted as described above to cover (step s6). . The operation buttons 5 and 5 are configured such that push button information is notified to the device control unit 2 only when a pair of buttons are pressed at the same time, and when one button is pressed by mistake. The prevention of malfunction is achieved.

  Next, or together with the operation of the rivet drop prevention means 50, the rotation actuator 27 is controlled by the apparatus control unit 2, and the rotating rod 26 is rotated by 180 degrees around the Y-axis direction. The part 40, that is, the workpiece 100 is rotated (step s7). During this rotation, the rivets 105... 105 inserted above move to the back side, but are inserted without dropping from the rivet holes 101a... 101a because they are covered with the guide plates 53a and 54a. The state as it is is maintained. Next, the operator inserts the upper rivets 104 ... 104 into the rivet hole 101a of the cross member 101 from the upper side (step s8).

Thereafter, when the operation button 4 is pressed again (step s9), a slide driving device (not shown) operates, the index table 20 moves toward the caulking unit 10 along the X-axis direction, and the workpiece 100 is brought into a predetermined position. Positioned. At this time, the index table 20 can be moved in the Y-axis direction and in the Z-axis direction as necessary.
Further, the apparatus control unit 2 controls the caulking part rotating actuator 11 of the caulking unit 10 to rotate the caulking part 14 to a predetermined position, and caulks the upper rivets 104 ... 104 on the workpiece 100 (step s1). 0) . Then, the apparatus control unit 2 controls the rotation actuator 27 again rotates the workpiece holding unit 30 and the work holder 40 by 180 degrees, it turned over by rotating the workpiece 100 (step s 11). After the rotation, the index table 20 is moved in the X-axis and Y-axis directions as necessary, and the caulking unit 10 is rotated as necessary. When these movement and rotation operations are unnecessary, these processes are not performed.

Next, the rivet drop prevention actuators 51 and 52 are operated to retract the guide plates 53a and 54a of the rivet drop prevention guides 53 and 54 from the surface of the lower rivets 105 to 105 to a position where they do not interfere with the rivet operation. . Thereafter, the crimping of the lower rivets 105 ... 105 is performed by caulking section 14 (step s12). After the front and back surfaces of the workpiece 100 are caulked, the apparatus control unit 2 moves the index table 20 to the standby position along the X-axis direction, and controls the dispensing actuator 62 to move the workpiece holding arm 61 forward. After that, the workpiece 100 is tilted and rotated to pay out the workpiece 100 to the front of the workpiece holder 40 (step s13). The dispensed workpiece 100 moves on the dispensing inclined rail 71 and is held by the workpiece receiving plate 72. The workpiece 100 that has been paid out can be moved to a cart or the like (not shown) and used in a subsequent process. The automatic rivet caulking device 1 can continuously perform rivet caulking work on a new workpiece.
In the embodiment described above, the operation button 4 is repeatedly used to perform an operation command. However, an operation button corresponding to each operation command may be individually provided.

  In the series of caulking operations described above, work that requires caulking of rivets on the front and back sides can be performed efficiently without relying on the operator's manual, and work can be performed in a short processing cycle. The number of processing workpieces increases. Further, in the caulking process, the operator does not need to touch the apparatus until the caulking of the front and back surfaces is completed, so that the work safety is also improved.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said description, In the range which does not deviate from this invention, a change is possible.

It is a schematic front view which shows the whole automatic rivet crimping apparatus of one Embodiment of this invention. Similarly, it is a perspective view which shows a caulking unit. It is a front view which similarly shows an index table. Similarly, it is a perspective view of an index table including a work holding unit and a work holding unit. Similarly, it is a perspective view showing a work holding unit. Similarly, it is a block diagram which shows an apparatus control structure. Similarly, it is a disassembled and a finished product perspective view showing a workpiece to be processed. Similarly, it is a flowchart which shows the whole caulking process process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic rivet caulking apparatus 2 Apparatus control part 4 Operation button 5 Operation button 10 Caulking unit 11 Caulking part rotating actuator 14 Caulking part 15 Caulking drive means 20 Index table 22, 23 Vertical movement actuator 25 Work holding unit rotating mechanism 26 Rotating rod 27 Rotating actuator 30 Workpiece holding unit 32, 33 Y-axis direction moving actuator 40 Workpiece holding part 44, 45, 46, 47 Workpiece holding plate 48, 49 Workpiece holding actuator 50 Rivet dropout prevention means 51, 52 Rivet dropout prevention actuator 53, 54 Rivet drop prevention guide 60 Work payout mechanism 61 Work holding arm 62 Payout actuator
7 0 Work payout section
71 Inclined rail for payout
72 Work receiving plate 100 Work 101 Cross member 102 Upper gusset 103 Lower gusset 104 Upper rivet 105 Lower rivet

Claims (4)

A workpiece holding unit that holds the workpiece, an index table that includes the workpiece holding unit and is movable in the XYZ-axis direction, a movement control unit that controls movement of the index table, and a workpiece holding unit that holds the workpiece . An automatic rivet caulking device comprising a rivet caulking unit capable of caulking rivets against the front and back ,
The index table is provided with a workpiece holding unit rotation mechanism that allows the workpiece holding unit to rotate about an axis in the Y-axis direction so as to reverse the front and back surfaces of the workpiece held by the workpiece holding unit, the work holding unit work holder is provided for holding the workpiece, the said workpiece holding portion, rivet falling-off preventing means for preventing the inserted rivet to the workpiece falling out when the holding unit is the rotation An automatic rivet caulking device that is provided and further has a work paying mechanism for paying out a work on which rivets are caulked from the work holding unit to the work paying part.   A rivet inserted into the workpiece by the rivet drop-off preventing means while causing the workpiece holding unit to hold the workpiece by a first operation command, rotating the workpiece holding unit by the workpiece holding unit rotating mechanism according to a second operation command. A device control unit is provided that prevents the workpiece from falling off and causes a workpiece rivet caulked by the workpiece dispensing mechanism according to a third operation command to be dispensed from the workpiece holding unit to the workpiece dispensing unit. The automatic rivet caulking device according to 1.   3. The automatic rivet caulking device according to claim 2, wherein each operation command is issued based on an operation of an operation unit operated by an operator.   The automatic rivet caulking device according to any one of claims 1 to 3, wherein the rivet drop-off preventing means comprises a rivet drop-off prevention guide that moves to a site where the rivet inserted into the workpiece does not fall out.

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