JP2007223374A - Work mounting device and work mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide work mounting technology of roof glass, etc. capable of flexibly corresponding to a manufacturing error of a vehicle body and further reducing burden of a worker. <P>SOLUTION: The worker moves a third supporting member 30 to the upstream side of a carrier passage through a gripping part 38. Thereby, a copying roller 39 rotates along a groove part 52. Movement continues until a vehicle body contact member 34 makes contact with an upper edge 54 of a front part opening 53 of the vehicle body 50. Positioning in a direction of the carrier passage can be performed when the vehicle body contact member 34 makes contact with the upper edge 54 of the front part opening 53 of the vehicle body 50. Thereafter, the worker lowers the third supporting member 30 through the gripping part 38. Consequently, it is possible to place a work 36 at a specified position of the vehicle body 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a work attachment technique for attaching a plate-like work such as a roof glass to a vehicle body.

Vehicles equipped with a roof glass called a sunroof have become widespread. This type of vehicle has a roof glass attached to the vehicle body in an assembly line. In order to reduce the burden on the worker, a technique has been proposed in which a part of the work can be performed by a machine (see, for example, Patent Document 1 and Patent Document 2).
Japanese Patent Laid-Open No. 7-164872 (FIGS. 1 and 3) JP 2000-219170 A (FIG. 7)

Patent document 1 is demonstrated based on the following figure.
FIG. 9 is a diagram for explaining the basic principle of the prior art. A roof glass mounting jig 102 used when mounting the roof glass 100 to the vehicle body 101 is extended downward from the frame 103. A positioning means 104 in the front-rear direction, a positioning means 105 in the vehicle width direction extending downward from the frame 103, and a suction cup 106 extending downward from the frame 103 and adsorbing the roof glass 100 are provided.

  It is said that the roof glass 100 can be accurately attached to the vehicle body 101 because the roof glass 100 is positioned by the positioning means 104 in the front-rear direction and the positioning means 105 in the vehicle width direction.

  FIG. 10 is a detailed sectional view of the positioning means in the front-rear direction shown in FIG. 9. The positioning means 104 in the front-rear direction includes an attachment 108 placed on the front edge of the vehicle body 101 and a cylinder unit provided on the attachment 108 side. 109 and a pin 112 provided on the piston rod 111 side of the cylinder unit 109. Then, the pin 112 is inserted into the hole 114 provided in the box-shaped header 113 which is a part of the vehicle body 101, thereby determining the positioning.

However, since the vehicle body 101 including the header 113 is manufactured by welding a thin metal, the dimensional accuracy is not good. For this reason, the position of the hole 114 also varies.
As a result, the roof glass 100 cannot be placed at a predetermined position on the vehicle body 101 even though the positioning of the roof glass mounting jig 102 is performed by the positioning means 104 in the front-rear direction and the positioning means 105 in the vehicle width direction. Inconvenience occurs.

A technique that can eliminate the above-described problems has been proposed in Patent Document 2.
Patent Document 2 will be described with reference to the following figure.
FIG. 11 is a diagram for explaining the basic principle of another conventional technique. The roof glass conveying device 120 is configured to be movable in the front-rear, up-down, left-right direction with respect to the vehicle body 121. Is provided. The L-shaped work holding portion 122 includes a receiving portion 124 that receives the roof glass assembly 123.

  With the roof glass assembly 123 placed on the receiving portion 124, the L-shaped work holding portion 122 is inserted into the vehicle body 121 from the front opening 125 of the vehicle body 121 as indicated by an arrow A. Next, the worker lifts the roof glass assembly 123 on the receiving portion 124 as indicated by an arrow B and attaches it to the vehicle body 121.

  Since the roof glass assembly 123 is heavy, if it is lifted as indicated by the arrow B, the burden on the worker is not small. A roof glass mounting jig that does not entrust the lifting and lowering operation of a heavy object to an operator is desired.

  An object of the present invention is to provide a work mounting technique such as a roof glass that can flexibly cope with a manufacturing error of a vehicle body and can further reduce the burden on an operator.

  According to the first aspect of the present invention, a first support member that is movably supported by a guide rail disposed along a conveyance path of a vehicle body, and the first support member can be moved up and down via first lifting means. A second support member that is supported, a third support member that is provided in the second support member so as to be movable in a direction orthogonal to the conveyance path, and a workpiece that is provided on the third support member and sucks the workpiece. Workpiece adsorbing means, a vehicle body abutting member provided on the third support member and abutting on the vehicle body, and supported by the third support member via a second elevating means so as to be raised and lowered are present in the vehicle body. A copying roller fitted in the groove, a grip provided on the third support member and gripped by an operator, and a control means provided on the grip for controlling the first lifting means and the second lifting means It is characterized by comprising.

According to a second aspect of the present invention, there is provided a standby process in which the work attachment device according to the first aspect is used to wait on the transport path of the vehicle body in a state where the work is attracted to the work suction means.
When the vehicle body reaches the lower part of the workpiece, an operator operates the control means and the grip part to bring the first lifting / lowering means into a free state and extend the second lifting / lowering means to follow the groove of the vehicle body. Moving the third support member in a direction orthogonal to the conveyance path so that the roller is positioned, and then fitting the copying roller into the groove, positioning the workpiece in a direction orthogonal to the conveyance path direction;
When the worker moves the third support member to the upstream side of the conveyance path via the grip portion, the copying roller is caused to travel along the groove portion, and the vehicle body abutting member is brought into contact with the vehicle body. Positioning the workpiece in the road direction;
A workpiece placing step in which an operator lowers the third support member via a grip portion and places the workpiece on the vehicle body.

The invention according to claim 1 is provided with a copying roller fitted in a groove portion present in the vehicle body. The operator moves the third support member to the upstream side of the conveyance path via the grip part, so that the copying roller travels along the groove part, and the vehicle body abutting member abuts the vehicle body. It is possible to position the workpiece. In addition, since the third support member can move in a direction perpendicular to the conveyance path, the worker can easily position the workpiece in accordance with the vehicle body. In moving the workpiece, the worker moves the third support member horizontally and then lowers it. Horizontal movement and lowering are easy.
Therefore, according to the first aspect, it is possible to provide a work mounting technique such as a roof glass which can flexibly cope with a manufacturing error of the vehicle body and can further reduce the burden on the operator.

  In the invention according to claim 2, in addition to the effect of the invention according to claim 1 described above, the standby step, the step of positioning the workpiece in the direction orthogonal to the conveyance path direction, and the step of positioning the workpiece in the conveyance path direction By repeating the work placing step, the work can be efficiently attached to the vehicle body.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
The workpiece mounting apparatus according to the present invention is shown in FIG. 1 (a perspective view of the workpiece mounting apparatus according to the present invention), FIG. 2 (front view of the workpiece mounting apparatus according to the present invention) and FIG. 3 (of the workpiece mounting apparatus according to the present invention). (Side view).

The workpiece mounting device 10 will be described with reference to FIG. 1. A pair of left and right guide rails 11, 11 are provided with conveying rollers 12... (... indicates a plurality, the same applies hereinafter) and a bracket 13. The first support member 15 is supported.
The first support member 15 includes, for example, two longitudinal beams 16 and 16, cross beams 17 and 17 that span the longitudinal beams 16 and 16, and a center plate 18 that spans the cross beams 17 and 17. It consists of.

A belt fastener 19 is provided on the center plate 18, and the belt fastener 19 is coupled to a belt 21 that is stretched in parallel to the guide rail 11.
If the belt 21 is driven by the motor 22, the first support member 15 can be moved horizontally along the guide rails 11 and 11.

  A first elevating means 23 such as a hydraulic cylinder is attached to the center plate 18 in a vertical direction (so that the elevating axis is vertical). The first raising / lowering means 23 plays a role of raising and lowering the second support member 24. In addition, the two rods 25 and 25 that stand on the second support member 24 and pass through the center plate 18 exhibit an effect of preventing the second support member 24 from turning.

  A third support member 30 is provided on the second support member 24 via rail members 27 and 27 that extend in a direction orthogonal to the conveyance path 51 of the vehicle body 50. The third support member 30 includes a cross member 31, a pair of longitudinal members 32, 32 fixed to the class member 31, and stays 33, 33 extending from one end of the longitudinal members 32, 32, respectively. Become. These stays 33 and 33 are provided with rod-shaped vehicle body contact members 34 and 34, respectively.

  The second support member 24 and the third support member 30 are connected by a lateral movement cylinder 35, and the third support member 30 can be fixed at a predetermined position with respect to the second support member 24. . The lateral movement cylinder 35 may be a moving means, and may be a pinion rack or a link mechanism.

Further, work suction means 37... For sucking the work 36 are provided at both ends of the longitudinal members 32, 32 of the third support member 30.
The workpiece suction means 37... Is preferably composed of a suction cup, a vacuum pump for reducing the pressure inside the suction cup, and a pump controller for controlling the vacuum pump. Further, the work attracting means 37... May be an electrostatic chuck or an electromagnetic chuck, and any kind can be used as long as it can attract and lift the work 36 arbitrarily.

In addition, the grip part 38 ... and the copying roller 39 provided in the 3rd support member 30 are demonstrated below.
As shown in FIG. 2, the first support member 15 is supported by the guide rails 11 and 11 so as to be movable in the front and back direction of the drawing. The second support member 24 supported by the first support member 15 via the first elevating means 23 supports the third support member 30 so as to be movable in the horizontal direction of the drawing. The longitudinal members 32 of the third support member 30 are provided with grip portions 38 which are grasped by an operator via a rod 41. The operator can move the third support member 30 in the left-right direction of the drawing by pushing and pulling the grip portions 38, 38.

  As shown in FIG. 3, the second elevating means 42 is provided on the longitudinal member 32 constituting the third support member 30, and the follower roller is moved along the lower end of the piston rod 43 of the second elevating means 42. 39 is rotatably provided. The guide rod 44 exhibits a detent action of the piston rod 43.

  FIG. 4 is an explanatory diagram of the grip portion and control means according to the present invention. The grip portion 38 at the location having the copying roller 39 includes a first control button 45, a second control button 46, and a control portion 47. Control means 48 is provided. The operation of these elements will be described later.

  That is, as shown in FIG. 3, the work mounting apparatus 10 of the present invention includes a first support member 15 that is supported movably by a guide rail 11 disposed along a conveyance path 51 of a vehicle body 50, and the first support member 15. A second support member 24 supported by the first support member 15 via a first lifting means 23 so as to be movable up and down; and a second support member 24 movably movable in a direction perpendicular to the conveyance path 51 (the front and back of the drawing). A third support member 30 provided, work suction means 37 and 37 provided on the third support member 30 for sucking the work 36, and a vehicle body contact provided on the third support member 30 and contacting the vehicle body 50. A contact member 34; a copying roller 39 supported by the third support member 30 through the second lifting means 42 so as to be movable up and down; and fitted into a groove (reference numeral 52 in FIG. 1) in the vehicle body 50; and a third support Provided in member 30 A grip portion 38 which work personnel hold, and control means for controlling the first lifting means 23 and the second lift means 42 provided in the grip portion 38 (reference numeral 48 in FIG. 4), and a.

Next, the operation of the workpiece mounting apparatus 10 configured as described above will be described.
In FIG. 3, the second control button 46 is pressed. As a result, the first elevating means 23, the second elevating means 42, and the lateral movement cylinder 35 are in a contracted state. That is, the third support member 30 is held at the upper limit position, and the copying roller 39 is held at the upper limit position.
By pressing the second control button 46, the motor 22 is started, and the first support member 15, the second support member 24, and the third support member 30 are returned to the upstream (left side in FIG. 3) preparation position. The workpiece 36 is attracted to the workpiece suction means 37 at this preparation position.

At the preparation position, a workpiece transfer device (not shown) receives the workpiece conveyed by the workpiece conveyance device (not shown), and transfers the workpiece in a state where the workpiece is positioned on the workpiece suction means 37 of the workpiece attachment device 10. When the transfer is completed, the workpiece attachment device 10 is transported by the motor 22 to a standby position above the transport path 51 of the vehicle body 50 and waits. In the standby state, the motor 22 is in a free state, and the first elevating means 23, the second elevating means 42, and the lateral movement cylinder 35 are in a contracted state.
When the vehicle body 50 approaches the workpiece attachment device 10 along the conveyance path 51, the worker grasps the grip portion 38 of the workpiece attachment device 10 waiting at the standby position and presses the first control button 45. By this pushing operation, the first elevating means 23 and the lateral movement cylinder 35 are in a free state, and the second elevating means 42 is in an extended state.

  As shown in FIG. 5, the vehicle body 50 flows under the third support member 30 in the standby position. The operator pushes and pulls the grip portion 38 to align the position of the copying roller 39 with the groove portion 52 of the vehicle body 50. That is, the third support member 30 is moved in the drawing front and back direction (direction perpendicular to the conveyance path direction, vehicle width direction) by the sliding action on the rail member 27, thereby positioning in the same direction.

  When the copying roller 39 reaches just above the groove 52, the grip 38 is pushed down to fit the copying roller 39 into the groove 52 as indicated by an imaginary line. Since the 1st raising / lowering means 23 is a free state, the downward movement is attained.

  Next, as shown in FIG. 6, the worker moves the third support member 30 to the left of the drawing (to the upstream side of the conveyance path) via the grip portion 38. Then, the copying roller 39 rotates along the groove portion 52. The movement continues until the vehicle body contact member 34 hits the upper edge 54 of the front opening 53 of the vehicle body 50. If the vehicle body abutting member 34 hits the upper edge 54 of the front opening 53 as indicated by an imaginary line, positioning in the left-right direction (conveyance path direction) of the drawing can be performed.

  Subsequently, as shown in FIG. 7, the worker lowers the third support member 30 through the grip portion 38. Thus, the work 36 can be placed on a predetermined position of the vehicle body 50. At this time, the second lifting / lowering means 42 is in an extended state, but the extension force of the second lifting / lowering means 42 is not particularly problematic because the force by which the operator pushes down the third support member 30 is weaker.

  FIG. 8 is a supplementary explanatory diagram of FIG. 7. As shown in FIG. 8A, a hole 57 is provided in the vehicle body 50, and a positioning projection 56 is provided on the lower surface of the work 36. As shown in FIG. 8B, the workpiece 36 can be attached to the vehicle body 50 by fitting the positioning projection 56 into the hole 57.

  When the attachment of the workpiece 36 is completed, the process returns to FIG. That is, the worker presses the second control button 46. Then, the work suction means 37 shown in FIG. 3 is opened, and the first lifting / lowering means 23, the second lifting / lowering means 42, and the lateral movement cylinder 35 are contracted. And the motor 22 plays the role which returns the 1st support member 15-the 3rd support member 30 to the preparation position of a conveyance path upstream collectively.

Summarizing the above actions, a standby step of waiting in the conveyance path of the vehicle body in a state where the workpiece is attracted to the workpiece adsorption means,
When the vehicle body reaches the lower part of the workpiece, the operator operates the control means and the grip part to bring the first lifting / lowering means into a free state and extend the second lifting / lowering means, and the copying roller matches the groove portion of the vehicle body. And moving the third support member in the direction orthogonal to the conveyance path and then fitting the copying roller into the groove, positioning the workpiece in the direction orthogonal to the conveyance path direction,
The operator moves the third support member to the upstream side of the conveyance path via the grip part, so that the copying roller travels along the groove part, and the vehicle body abutting member abuts the vehicle body. Positioning the workpiece to
A workpiece placing step in which the worker lowers the third support member via the grip portion and places the workpiece on the vehicle body.

  By repeatedly performing the standby step, the step of positioning the workpiece in the direction orthogonal to the conveyance path direction, the step of positioning the workpiece in the conveyance path direction, and the workpiece placement step, the workpiece can be efficiently attached to the vehicle body. .

  In the present invention, the work has been described by taking the roof glass as an example.

  The present invention is suitable for a work attachment device used when a roof glass is attached to a vehicle.

It is a perspective view of the workpiece | work attachment apparatus which concerns on this invention. It is a front view of the workpiece attachment apparatus which concerns on this invention. It is a side view of the workpiece attachment apparatus which concerns on this invention. It is explanatory drawing of the grip part and control means which concern on this invention. It is explanatory drawing of the process which positions a workpiece | work in the direction orthogonal to the standby process and conveyance path direction which concern on this invention. It is explanatory drawing of the process of positioning a workpiece | work to the conveyance path direction which concerns on this invention. It is explanatory drawing of the workpiece | work mounting process which concerns on this invention. FIG. 8 is a supplementary explanatory diagram of FIG. 7. It is a figure explaining the basic principle of a prior art. FIG. 10 is a detailed cross-sectional view of the positioning means in the front-rear direction shown in FIG. 9. It is a figure explaining the basic principle of another prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Work attachment apparatus, 11 ... Guide rail, 15 ... 1st support member, 23 ... 1st raising / lowering means, 24 ... 2nd support member, 30 ... 3rd support member, 34 ... Vehicle body contact member, 36 ... Workpiece | work , 37... Workpiece adsorbing means, 38... Gripping part, 39 .. copying roller, 42... Second elevating means, 48.

Claims (2)

  A first support member that is movably supported by a guide rail disposed along a conveyance path of the vehicle body, and a second support member that is supported by the first support member so as to be movable up and down via first lifting means. A third support member provided on the second support member so as to be movable in a direction orthogonal to the conveyance path, a work suction means provided on the third support member for sucking a work, and the third A vehicle body abutting member that is provided on a support member and abuts against the vehicle body; a copying roller that is supported by the third support member so as to be movable up and down via a second elevating means and is fitted in a groove that exists in the vehicle body; A grip portion provided on the third support member and gripped by an operator, and a control means provided on the grip portion and controlling the first lifting means and the second lifting means. Workpiece mounting device. Using the workpiece attachment device according to claim 1, in a state where the workpiece is adsorbed to the workpiece adsorption means, a standby step of waiting on the conveyance path of the vehicle body,
When the vehicle body reaches the lower part of the workpiece, an operator operates the control means and the grip part to bring the first lifting / lowering means into a free state and extend the second lifting / lowering means to follow the groove of the vehicle body. Moving the third support member in a direction orthogonal to the conveyance path so that the roller is positioned, and then fitting the copying roller into the groove, positioning the workpiece in a direction orthogonal to the conveyance path direction;
When the worker moves the third support member to the upstream side of the conveyance path via the grip portion, the copying roller is caused to travel along the groove portion, and the vehicle body abutting member is brought into contact with the vehicle body. Positioning the workpiece in the road direction;
A workpiece placing step in which an operator lowers the third support member via a grip portion and places the workpiece on the vehicle body;
A work mounting method characterized by comprising:

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