JP2010179894A - Positioning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning device capable of being used for any of a luggage and a back door in common. <P>SOLUTION: The positioning device for placing and positioning works 101, 102 constitutes a positioning device 1 having a first fixture 11 and a second fixture 12 connected to each other through a hinge 10; and a drive mechanism 13 for varying the opening angle of the first fixture 11 and the second fixture 12 fitting to the shape of the works 101, 102. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a positioning device used in the manufacturing stage of an automobile.

  Conventionally, when applying a sealer to a workpiece or attaching an inner member, it is necessary to position the workpiece. When positioning a workpiece, the workpiece is held and positioned by a receiving piece dedicated to the workpiece shape. The receiving piece is attached to a rotating body or attached to a cylinder so that a plurality of types of automobiles correspond to one positioning device.

  Rotating body vehicle cutting jig is a device in which different receiving pieces are installed on each of the four surfaces of the rotating body, and positioned so that the receiving piece suitable for the type of work to be set is on top. . On the other hand, the vehicle-cutting jig by cylinder shift is for shifting the cylinder with the receiving piece up and down to cut the vehicle.

  In Patent Document 1, as an example of such a conventional positioning device, a plurality of gauges having different shapes corresponding to the workpiece shape to be positioned are provided radially, and the gauges corresponding to the rotational positions are projected to the use position. A plurality of gauge units and a rotating member connected to each gauge unit are engaged with each other, and each gauge unit is rotated in conjunction with each other by the movement of each gauge unit so that the rotation angle positions of the respective gauge units are linked. Workpiece positioning provided with linkage means and workpiece type switching means for setting a gauge for stopping the linkage means at any of a plurality of preset stop positions and projecting from each gauge unit to the use position according to the stop position An apparatus is disclosed.

  In Patent Document 2, as an example of such a conventional positioning device, a switch is made to a predetermined gauge portion among a plurality of gauge portions provided so as to be capable of moving forward and backward, and a workpiece is brought into contact with the contact surface. Accordingly, in the workpiece positioning apparatus for positioning the workpiece, at least one holding means including a guide rod having gauge portions provided at both ends thereof, a driving means for moving the guide rod forward and backward, and the holding means are provided. There is disclosed a workpiece positioning device having a rotating means for rotating around a fixed point.

  In Patent Document 3, as an example of such a conventional positioning device, a first positioning portion that performs positioning by contacting a workpiece, and a plane that is perpendicular to the contact direction of the workpiece with respect to the first positioning portion are parallel. Workpiece positioning provided with positioning jigs each having a second and a third positioning portion whose surfaces perpendicular to the surface including the contacting direction intersect with each other. An apparatus is disclosed.

JP 2007-30653 A JP-A-7-299594 JP 2007-69273 A

  However, in such a positioning device, it is necessary to manufacture the luggage and the back door on different production lines. This is because the luggage and the back door are greatly different in shape. That is, as shown in FIG. 9, the back door 101 has an opening of about 150 degrees between the rear end face 101a and the back door upper part 101b in a side view. On the other hand, the luggage 102 has an opening of about 100 degrees between the rear end face 102a and the luggage upper part 102b in a side view.

  Assuming that the luggage and the back door having large different shapes are manufactured on the same production line, in the conventional positioning device, for example, in the vehicle cutting jig 103 using a rotating body as shown in FIG. The pieces 103b attached to the rotating body 103a interfere with each other at the time of rotation, and in the vehicle cutting jig 104 by the cylinder shift as shown in FIG. 11, the back door 101, the luggage 102, It is not possible to handle both.

  In addition, the rotating body vehicle cutting jig requires a rotation motor and a rotating body locking mechanism, and has a large investment, and because it has a four-sided structure, it can handle only up to four types of vehicles. On the other hand, in the case of a vehicle-cutting jig by cylinder shift, if the stroke is long, bending and blurring occur, so it is usually possible to design only up to a stroke of about 200 mm. In addition, although the distance between the shift cylinders can be set at a pitch of about 50 mm, there are problems that it is difficult to arrange the pieces if there are many types of cars, and usually only about four types of cars can be handled.

  In either case, since it is shared by both the luggage and the back door and cannot be used as a common process, a dedicated jig is required for each, and a large investment is required. Moreover, since the installation place of each jig | tool is required, a space is required. Furthermore, there was a problem that it was necessary to produce a dedicated receiving piece for each vehicle type.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a positioning device that can be used in common for both the luggage and the back door.

  In order to achieve the above object, the present invention provides a positioning apparatus for placing and positioning a workpiece, the first jig and the second jig connected via a hinge portion, And a drive mechanism for changing an opening angle between the first jig and the second jig in accordance with the shape.

  The first jig and / or the second jig may include a vacuum device for fixing the workpiece.

  The first jig and / or the second jig includes a length direction set guide for positioning the jig in the length direction of the work, and the length direction set guide in the length direction of the jig. And a drive mechanism for sliding along.

  The first jig and / or the second jig is a width direction set guide for positioning the jig in the width direction of the workpiece, and the width direction set guide is slid along the width direction of the jig. And a drive mechanism for making it happen.

  The first jig and / or the second jig is an upper receiving part for receiving the upper part of the back door as a workpiece, and for sliding the upper receiving part along the length direction of the jig. And a drive mechanism.

  According to the positioning device of the present invention, the opening angle of the first jig and the second jig can be changed to be used in common for both the luggage and the back door.

  When the first jig and / or the second jig includes a vacuum device, the workpiece can be securely fixed.

  The first jig and / or the second jig is a longitudinal direction set guide for positioning in the longitudinal direction of the jig on the workpiece, and the longitudinal direction set guide is arranged in the longitudinal direction of the jig. If you have a drive mechanism for sliding along the length of the jig, slide the length direction set guide along the length direction of the jig and set it to an appropriate position, so that the length direction of the jig in the workpiece Can be positioned.

  The first jig and / or the second jig slides along the width direction of the jig along the width direction set guide for positioning the jig in the width direction of the workpiece. In the case of having a drive mechanism for causing the jig to slide, the width direction set guide is slid along the width direction of the jig and set to an appropriate position, so that the jig can be positioned in the width direction of the workpiece. .

  A first jig and / or a second jig for receiving an upper part of the back door as a workpiece and for sliding the upper part along the length of the jig. In the case of having a drive mechanism, the back door can be reliably placed by matching the upper receiving portion with the upper position.

It is a perspective view showing a positioning device concerning an embodiment of the present invention. It is a side view which shows the positioning device of FIG. It is a top view of the state which mounted the back door as a workpiece | work in the positioning apparatus of FIG. It is a side view of the state of FIG. It is a perspective view of the state of FIG. FIG. 2 is a plan view of a state where a luggage as a workpiece is placed on the positioning device of FIG. 1. It is a side view of the state of FIG. It is a perspective view of the state of FIG. It is a side view which shows a back door (a) and a luggage (b). It is a side view which shows the vehicle cutting jig using the conventional rotary body. It is a side view which shows the vehicle cutting jig using the conventional cylinder.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a positioning device according to an embodiment of the present invention, and FIG. 2 is a side view thereof. 3, 4, and 5 are a plan view, a side view, and a perspective view, respectively, illustrating a state in which a back door as a workpiece is placed on the positioning device of the embodiment, and FIGS. 6, 7, and 8 are the positioning of the embodiment. It is a top view, a side view, and a perspective view, respectively, in a state where a back door as a work is placed on the apparatus. In the specification, the width direction is a direction parallel to the vehicle width direction. The length direction is a direction perpendicular to the width direction.

  The positioning device 1 is a positioning device for placing and positioning a back door 101 or a luggage 102 as a workpiece, and includes a first jig 11 and a second jig connected via a hinge portion 10. 12 and an NC control device 13 as a drive mechanism for changing the opening angle of the first jig 11 and the second jig 12 in accordance with the shape of the back door 101 or the luggage 102 as a workpiece. By this NC control device 13, the opening angle of the first jig 11 and the second jig 12 is changed according to the shape of the back door 101 or the luggage 102, and the back door 101 and the luggage 102 of various shapes are positioned. can do. The opening angle of the first jig 11 and the second jig 12 can vary between 90 degrees and 180 degrees.

  The first jig 11 includes a first vacuum device 41 and a second vacuum device 42 for fixing a workpiece, and a vacuum control device (not shown) for controlling suction of these vacuum devices. ing. These are for adsorbing to the rear end surfaces 101 a and 102 a of the back door 101 or the luggage 102 and securely fixing the back door 101 or the luggage 102 to the first jig 11.

  The second jig 12 is a third vacuum device 3 for fixing the workpiece, and the third vacuum device 3 slides along the length direction of the jig, that is, in the direction of arrow G in the figure. And a control device (not shown) for controlling the suction of the vacuum device 3. The vacuum device 3 is for attracting the luggage 102 as a work to the upper portion 102b of the luggage 102 in a state where it is placed on the positioning device 1 and securely fixing the luggage 102 to the second jig 12. .

  The first jig 11 has a second longitudinal direction set guide 7 for positioning in the longitudinal direction of the jig on the workpiece. The second length direction set guide 7 is a fixed guide that is commonly used when the luggage 102 or the back door 101 as a work is placed, and is used as a set reference in the length direction. The second longitudinal direction set guide 7 is connected to the first jig 11 via the arm 71.

  The second jig 12 includes a first length direction set guide 5 for positioning the jig in the length direction of the work, and the first length direction set guide 5 as the length of the jig. And an NC control device 21 as a drive mechanism for sliding in the vertical direction, that is, in the direction of arrow B in the figure.

  Further, the first jig 11 includes a width direction set guide 6 for positioning the jig in the width direction of the work, and the width direction set guide 6 in the width direction of the jig, that is, in the direction of arrow F in the figure. And an NC control device 43 as a drive mechanism for sliding along. The width direction set guide 6 is connected to the first jig 11 via an arm 61.

  Further, the second jig 12 has an upper receiving portion 2 for receiving the upper portion 101b of the back door 101 as a workpiece on the upper surface, and the upper receiving portion 2 in the length direction of the jig, that is, an arrow D in the figure. NC controller 22 as a drive mechanism for sliding along the direction shown in FIG.

  The second jig 12 includes a robot mounting bracket 9 at the lower part. The robot mounting bracket 9 is connected to a material hand (not shown). By operating this material hand, the positioning device 1 is moved in the three-dimensional direction.

  The second jig 12 includes a positioning reference portion 12a on the lower surface. The positioning reference portion 12a is for positioning to a predetermined position by aligning the bottom surface with the positioning reference base 8a or the positioning reference base 8b provided on the floor surface.

  Next, the operation when positioning the back door 101 and the luggage 102 using the positioning device 1 will be described.

  When the back door 101 is placed on the positioning device 1 and positioned, the NC control device 13 is controlled so that the opening angles of the first jig 11 and the second jig 12 are adjusted to the back door 101, and FIG. As shown by the middle arrow A, the side view is adjusted to about 150 degrees.

  Subsequently, the NC control device 22 causes the upper receiving portion 2 and the fourth vacuum device 3 to slide integrally along the length direction of the jig, that is, in the direction of arrow D in the drawing, as shown in FIGS. In this manner, the fourth vacuum device 3 is disposed at a position in contact with the upper portion 101 b of the back door 101.

  Further, the NC control device 21 causes the first length direction set guide 5 to slide along the length direction of the jig, that is, the arrow B direction in the drawing, and comes into contact with the window frame portion of the upper portion 101b of the back door 101. Place in position.

  Further, the NC control device 43 causes the width direction set guide 6 to slide along the width direction of the jig, that is, in the direction of arrow F in the figure, at a position in contact with the width direction edge of the rear end surface 101a of the back door 101. Deploy.

  Further, the NC receiving device 2 is slid along the length direction of the jig, that is, the direction indicated by the arrow D in the drawing by the NC control device 22 and is arranged at a position in contact with the vicinity of the upper end of the upper portion 101b of the back door 101. To do.

  In this state, the back door 101 is placed on the positioning device 1. In this state, the back door 101 has a second length direction set guide 7 on the edge in the length direction of the rear end surface 101a, a first length direction set guide 5 on the window frame portion of the upper portion 101b, and the width direction. The set guide 6 is positioned at a predetermined position of the positioning device 1 by contacting the edge in the width direction of the rear end surface 101a and the upper receiving portion 2 near the upper end of the upper portion 101b. Here, the positions of the second length direction set guide 7, the first length direction set guide 5, and the width direction set guide 6 are finely adjusted as necessary.

  Subsequently, the material hand is operated, and the positioning device 1 is moved so that the bottom surface of the reference portion 12a is aligned with the positioning reference base 8b provided on the floor surface, and is positioned at a predetermined position.

  The back door 101 is positioned at a predetermined position by the above procedure. Note that the order of the above procedures may be interchanged. The position and angle of each device are determined by the vehicle type, and the control computer instructs each control unit to specify an appropriate position according to the information on the next vehicle type, thereby performing position control.

  When the luggage 102 is placed on the positioning device 1 for positioning, the NC control device 13 is controlled so that the opening angles of the first jig 11 and the second jig 12 are adjusted to the luggage 102, and the arrows in FIG. As shown in A, the side view is adjusted to about 100 degrees.

  Subsequently, the NC control device 22 causes the upper receiving portion 2 and the fourth vacuum device 3 to slide integrally along the length direction of the jig, that is, in the direction of arrow D in the drawing, as shown in FIGS. Thus, the upper receiving part 2 is arranged at a position in contact with the upper part 102 b of the luggage 102.

  Moreover, the first length direction set guide 5 is slid along the length direction of the jig, that is, in the direction of arrow B in the figure by the NC control device 21, and on the edge in the length direction of the upper portion 102 b of the luggage 102. Place it at the touching position.

  Further, the NC control device 43 causes the width direction set guide 6 to slide along the width direction of the jig, that is, the arrow F direction in the drawing, and is disposed at a position in contact with the width direction edge of the rear end surface 102a of the luggage 102. To do.

  In the above state, the luggage 102 is placed on the positioning device 1. In this state, the luggage 102 has the second longitudinal direction set guide 7 at the longitudinal edge of the rear end surface 102a, the first longitudinal direction set guide 5 at the longitudinal edge of the upper portion 102b, and the width. The luggage 102 is positioned at a predetermined position of the positioning device 1 by the direction set guide 6 coming into contact with the edge in the width direction of the rear end surface 102a. Here, the positions of the first length direction set guide 5 and the width direction set guide 6 are finely adjusted as necessary.

  Thereafter, the vacuum control device sucks the first vacuum device 41, the second vacuum device 42, and the third vacuum device 3, and fixes the luggage 102 to the positioning device 1.

  Subsequently, the material hand is operated, and the positioning device 1 is moved so that the bottom surface of the reference portion 12a is aligned with the positioning reference base 8a provided on the floor surface, and is positioned at a predetermined position.

  The luggage 102 is positioned at a predetermined position by the above procedure. Note that the order of the above procedures may be interchanged. The position and angle of each device are determined by the vehicle type, and the control computer instructs each control unit to specify an appropriate position according to the information on the next vehicle type, thereby performing position control.

  Next, a second embodiment of the present invention will be described. As shown in FIG. 8, the positioning device 20 of the second embodiment has substantially the same configuration as that of the positioning device 1 of the first embodiment. However, the robot mounting bracket 9, the positioning reference portion 12a, and the reference corresponding thereto. The base 8 is not provided. Instead, a support portion 81 standing on the floor surface is provided and positioned with respect to the floor surface. The angle formed between the support portion 81 and the second jig 12 may be fixed or variably provided by a drive mechanism. Description of portions having the same configuration as the positioning device 1 of the first embodiment is omitted.

  According to the positioning device 1 and the positioning device 20 as described above, the jig can be shared by the luggage and the back door, so that the investment can be reduced and the assembly in the mixed flow line can be achieved, thereby reducing the space. Is also connected. Further, the receiving piece can be shared, and any shape of workpiece can be handled only by teaching, and the effects of cost reduction and man-hour reduction can be achieved.

  As described above, the positioning device of the present invention is a positioning device for placing and positioning a workpiece, the first jig and the second jig connected via a hinge part, And a drive mechanism that changes the opening angle of the first jig and the second jig in accordance with the shape of the workpiece, and can be implemented in various forms without departing from the gist thereof. .

1,20 Positioning device 2 Upper receiving portion 3 Vacuum device 5, 7 Length direction set guide 6 Width direction set guide 8 Reference base 9 Robot mounting bracket 10 Hinge portion 11 First jig 12 Second jig 12a Reference portion 13, 21, 22, 43, 51 Control device 41, 42 Vacuum device 61, 71 Arm 81 Support portion 101 Back door 101a Rear end surface 101b of back door Upper portion 102a of back door 102a Rear end surface 102b of luggage Upper portion 102 of luggage

Claims (5)

A positioning device for placing and positioning a workpiece,
A first jig and a second jig connected via a hinge part;
A positioning device comprising: a drive mechanism that changes an opening angle between the first jig and the second jig in accordance with the shape of the workpiece.   The positioning device according to claim 1, wherein the first jig and / or the second jig includes a vacuum device for fixing a workpiece.   The first jig and / or the second jig includes a length direction set guide for positioning the jig in the length direction of the workpiece, and the length direction set guide is the length of the jig. The positioning apparatus according to claim 1, further comprising a drive mechanism for sliding along the direction.   The first jig and / or the second jig include a width direction set guide for positioning in the width direction of the jig in the workpiece, and the width direction set guide is arranged along the width direction of the jig. The positioning device according to claim 1, further comprising a drive mechanism for sliding.   The first jig and / or the second jig includes an upper receiving portion for receiving an upper portion of a back door as a workpiece, and the upper receiving portion is slid along the length direction of the jig. The positioning device according to claim 1, further comprising: a driving mechanism for driving.