JP5444027B2 - Door jig - Google Patents

Description

  The present invention relates to a door jig used in an automobile manufacturing process.

  When painting the vehicle body in the painting process, painting is performed by a painting robot or the like while transporting the carriage on which the vehicle body is placed. The car body is painted with the door attached. This is to make the painting conditions for the vehicle body and the door the same, and to eliminate the color difference between the vehicle body and the door, but in the painting process, the door lock mechanism for engaging the vehicle body and the door is not attached, If the door attached to the vehicle body is opened during the process, there is a risk that deformation will occur due to interference with peripheral devices, and troubles will occur that overload the transport device.

  In order to prevent this, in Patent Document 1, a door jig is attached to the door inner plate, and a lever of a temporary fixing rod pivotally supported by the door jig is rotated to turn the end of the center pillar into the body engaging portion. And the door is fixed at a predetermined opening with respect to the vehicle body.

  In Patent Document 2, a door jig is attached to the center pillar of the vehicle body, and a fixed arm pivotally supported by the door jig is rotated to engage / disengage between the outer plate and the inner plate of the door. The door is fixed at the opening.

  Furthermore, in Patent Document 3, the door jig is fixed to the vehicle body by the flange portion of the side sill and the hole of the side sill, the door is magnetically attached and held by a magnet attached to the door jig, and a predetermined opening degree with respect to the vehicle body is obtained. The structure which fixes a door is disclosed.

JP 11-188305 A JP 2004-113872 A Japanese Utility Model Publication No. 6-76578

  However, according to the technique of Patent Document 1, in order to engage / disengage the body engaging portion and the end edge portion of the center pillar, it is necessary to rotate the lever of the temporary fixing rod. Then, it is necessary to perform lever position detection, a gripping mechanism, and complicated robot teaching work, which is costly and troublesome. Even in the technique of Patent Document 2, when attempting to engage / disengage using a robot, the position detection of the fixed arm, the gripping mechanism and the complicated robot teaching work are also required. Moreover, according to the technique of patent document 3, the side sill requires a hole for fixing the door jig, and it takes time and effort to close the hole later for rust prevention. Further, since there is a limit to the magnetic force, if the vehicle body suddenly swings during conveyance, the door may come off the door jig and be opened.

  The present invention was created in order to solve the above-described problems. When a door is engaged / disengaged by a robot via a door jig, the position detection and gripping mechanism of the door jig is provided. An object of the present invention is to provide a door jig that eliminates the need for complicated robot teaching work.

  In order to solve the above problems, the present invention comprises a vehicle body side jig attached to the vehicle body and a door side jig attached to the door, and the vehicle body side engagement portion and the door side jig formed on the vehicle body side jig. A door jig for holding the door at a predetermined opening degree relative to the vehicle body by engaging the door side engagement portion formed on the vehicle body, wherein the vehicle body side engagement portion and the door side engagement portion At least one is formed as an elastic member made of a spring wire.

  According to the door jig, the engagement / disengagement structure between the door and the vehicle body via the door jig becomes an engagement / disengagement structure using elastic deformation based on the turning operation force of the door. Therefore, for example, when engaging / disengaging by a robot, the robot operation may be an operation of simply rotating the door, which is a large component, without causing the robot to touch any door jig made of fine components. Accordingly, it is possible to engage and disengage the door with respect to the vehicle body using the robot without requiring the position detection of the door jig, the gripping mechanism, and the complicated robot teaching work.

  Further, according to the present invention, the vehicle body side jig includes a hook-shaped first engaging portion that engages with an opening formed in a center pillar of the vehicle body, and a door opening flange formed on a vertical edge of the center pillar. A groove-like second engaging portion that engages with the first and second engaging portions, and the vehicle body side engaging portion is the second engaging portion when fixed to the vehicle body via the first engaging portion and the second engaging portion. It is formed as a rod-shaped member located on the vehicle inner side than the engagement portion, the door side jig is inserted between the inner plate and the outer plate of the door and fixed to the door, and the elastic member is placed on the inner plate side of the door The elastic member of the door side jig is elastically deformed by a reaction force from the vehicle body side engaging portion accompanying the rotation of the door in the closing direction, and then on the peripheral surface of the vehicle body side engaging portion. It is characterized by engaging.

  According to the door jig, the structures of the vehicle body side jig and the door side jig are simplified, and the attachment of the vehicle body side jig to the vehicle body and the attachment of the door side jig to the door can be performed quickly.

  Further, according to the present invention, the elastic member of the door side jig includes an upright portion that first contacts the vehicle body side engaging portion and elastically deforms when the door rotates in the closing direction, and after the upright portion passes. And an engaging recess that engages with a peripheral surface of the vehicle body side engaging portion.

  According to the door jig, both the elastic function and the engagement function of the elastic member are improved by including the standing portion that is elastically deformed and the engagement recess that is engaged with the peripheral surface of the vehicle body side engagement portion. Can do.

  Further, the present invention is characterized in that the elastic member of the door side jig is formed with coiled loop portions on the base end side and one end side, respectively, in order to increase the elasticity of the upright portion.

  According to the door jig, the engagement / disengagement between the vehicle body side jig and the door side jig is smooth, and the rotational operation force of the door is small.

  According to the present invention, it is possible to engage and disengage a door with respect to a vehicle body using a robot without requiring position detection of a door jig, a gripping mechanism, and a complicated robot teaching operation.

It is a front view of the vehicle body side jig | tool in the door jig | tool of this invention. It is a top view of the vehicle body side jig | tool in the door jig | tool of this invention. It is a side view of the vehicle body side jig | tool in the door jig | tool of this invention. It is an external appearance perspective view of the vehicle body side jig in the door jig of this invention. It is a front view of the door side jig | tool in the door jig | tool of this invention. It is a top view of the door side jig | tool in the door jig | tool of this invention. It is a side view of the door side jig | tool in the door jig | tool of this invention. It is an external appearance perspective view of the door side jig | tool in the door jig | tool of this invention. It is a front view of the elastic member in a door side jig | tool. It is a top view of the elastic member in a door side jig | tool. It is an external appearance perspective view of the elastic member in a door side jig | tool. It is an external appearance perspective view which shows the engagement state of the vehicle body side jig | tool and a door side jig | tool when it sees from the vehicle inner side. It is an external appearance perspective view which shows the engagement state of the vehicle body side jig | tool and a door side jig | tool when it sees from the vehicle outer side. It is an external appearance perspective view which shows the engagement state of a vehicle body side jig | tool and a door side jig | tool when it sees from the vehicle outer side, Comprising: It is the figure which abbreviate | omitted the outer plate | board of the door. It is an external appearance perspective view which shows the state which engages / disengages a vehicle body side jig | tool and a door side jig | tool with a painting robot. It is an external appearance perspective view which shows the state which attached the pre-processing and electrodeposition jig | tool to the vehicle body side jig | tool.

  The door jig 1 of the present invention includes a vehicle body side jig 10 shown in FIGS. 1 to 4 and a door side jig 30 shown in FIGS. 5 to 8. With reference to FIGS. 1 to 4, the vehicle body w and its surroundings will be described with reference to FIG. 12 as appropriate. The vehicle body side jig 10 is a member attached to the center pillar w1 of the vehicle body w and is formed by bending. In addition, a single round bar member is provided. When the top and bottom of the paper surface of FIG. 1 is the “vertical direction”, the back of the paper surface is the outside direction of the vehicle, and the front side of the paper surface is the inward direction of the vehicle, the round bar member is bent into a substantially U shape so The U-shaped portion 11 composed of the vertical bars 11a and 11b and the bottom horizontal bar 11c arranged substantially along the longitudinal direction of the vehicle body w, and the horizontal bar 11c extending from the upper end of one vertical bar 11a A claw portion 12 (first engaging portion 22) that is bent outwardly in a direction perpendicular to the direction and bent around the tip obliquely downward to form a bowl shape and engages with a garnish hole w2 of the center pillar w1 of the vehicle body w. ), A biased portion 13 bent from the upper end of the other vertical bar 11b to the vehicle interior perpendicular to the extending direction of the horizontal bar 11c, and a horizontal bar of the U-shaped portion 11 from the tip of the biased portion 13 The vehicle body side that is bent in parallel with 11c and away from the horizontal bar 11c The engagement portion 14, a shape having a.

  A support bar 15 is welded toward the vehicle outer side in the middle of the vertical bar 11b, and an eaves-like member 17 (second engagement member) having an engagement groove 16 formed at the tip of the support bar 15 toward the claw portion 12. The joint 23) is welded. Between the vertical bars 11a and 11b, two upper and lower reinforcing horizontal bars 18 and 19 are placed, and in this embodiment, the vehicle body side jig 10 is used as a door opening degree fixing jig for pretreatment and electrodeposition. In order to be shared, the lower reinforcing horizontal bar 19 has a pair of non-cylindrical cylindrical insertion portions 20a and 20b for fixing the pretreatment / electrodeposition jig 100 (see FIG. 16). 21 is welded horizontally toward the inside of the vehicle.

  As shown in FIG. 16, the pretreatment / electrodeposition jig 100 has a centrally extending portion arranged horizontally, one end branching into two branches and extending vertically downward, and the insertion portion 20a and 20b are formed as bifurcated locking portions 100a and 100b that are inserted from the upper openings, and the other end is bent downward in a substantially U shape, and is formed between the inner plate d1 and the outer plate d2 of the door d. It is formed as a locking portion 100c inserted from the upper edge gap between the two.

  Next, with reference to FIGS. 5 to 8, the area around the door d will be described with reference to FIG. 12 as appropriate. The door side jig 30 is provided between the inner plate d1 and the outer plate d2 of the door d. And a support rod 32 welded to the upper bent portion 31a of the substrate 31 so as to extend to the vehicle inner side through the upper edge of the inner plate d1 and above the upper edge of the inner plate d1. And a flat elastic member holding plate 33 welded to the lower end of the support rod 32, and an elastic member 35 as a door side engaging portion. A female screw member (nut) 34 is welded to the lower end of the surface of the substrate 31 facing the inner plate d1. After the substrate 31 is inserted between the inner plate d1 and the outer plate d2, a bolt member 49 is screwed into the female screw portion 34 through the inner plate opening d3 of the inner plate d1. In the middle of one side edge of the substrate 31 in the vertical direction, an L-shaped pin 48 is welded after extending in the lateral direction so as to be substantially along the door d, and having its tip bent toward the inner plate d1. ing.

  The elastic member holding plate 33 is inserted with two bolt insertion holes 33 a for locking the folded portion 36 formed at the base end of the elastic member 35 and a bent portion 45 formed at the distal end of the elastic member 35. An insertion hole 33b for locking is opened.

  The elastic member 35 is composed of one spring wire as shown in FIGS. The elastic member 35 includes a folded portion 36 formed in a substantially U shape in the lateral direction at the base end, and a double-coiled first loop portion 37 extending vertically downward from the folded portion 36 and formed at the lower end thereof. A lower edge portion 38 extending horizontally in one direction (lateral direction away from the door d) with the first loop portion 37 as a base end, and a stopper portion 39 extending vertically upward from the tip of the lower edge portion 38. A locking edge portion 40 extending horizontally in the one direction from the upper end of the stopper portion 39, an inclined portion 41 extending obliquely downward on the one direction side from the tip of the locking edge portion 40, and an inclined portion Upright portion 42 that extends obliquely upward from the tip of 41 in the one direction and then curves so as to return to the other direction (lateral direction approaching door d) and whose tip is located above folding portion 36. And horizontally from the tip of the upright portion 42 in the other direction. An upper edge portion 43 provided, a second loop portion 44 of a double coil winding formed at the tip of the upper edge portion 43, and a fold formed vertically extending from the second loop portion 44 downward. And a curved portion 45. As shown in FIGS. 5 to 8, the elastic member 35 includes a pair of distal end bent portions 45 inserted and locked into the insertion holes 33 b, and a proximal end folded portion 36 inserted through the bolt insertion holes 33 a. By fastening with the bolt 46 and the nut 47, the elastic member holding plate 33 is fixed. The stopper portion 39, the locking edge portion 40, and the inclined portion 41 constitute an engaging recess 24 that engages with the peripheral surface of the vehicle body side engaging portion 14 that is a round bar member.

  Hereinafter, an example of how to use the door jig 1 will be described mainly with reference to FIGS. 12 to 16. The worker first attaches the vehicle body side jig 10 to the vehicle body w that has been conveyed from the welding process to the initial coating process by the conveyor. In order to fix the vehicle body side jig 10 to the vehicle body w, the claw portion 12 is inserted into the vertically elongated garnish hole w2 of the center pillar w1 of the vehicle body w on the inside of the vehicle, and then the vehicle body side jig 10 is attached to the claw portion. 12, the engagement groove 16 of the eaves-like member 17 is engaged with the door opening flange portion w3 formed at the vertical edge of the center pillar w1. Due to the weight of the vehicle body side jig 10, the base portion of the claw portion 12 is hooked on the lower edge of the vertically long garnish hole w2, and the engagement groove 16 engages with the door opening flange portion w3 while facing obliquely downward. Thus, the vehicle body side jig 10 does not come off the vehicle body w unless an upward force is applied.

  And in this embodiment, in order to position the door d in the pre-processing and electrodeposition process in the initial process of painting, as shown in FIG. 16, the pre-processing and electrodeposition jig 100 to the vehicle body side jig 10 is performed. The bifurcated locking portions 100a and 100b are inserted and locked to the insertion portions 20a and 20b, and the locking portion 100c is inserted between the inner plate d1 and the outer plate d2 of the door d from the upper edge gap between both. Lock. As a result, the door d is positioned with a relatively large rotation with respect to the vehicle body W via the door jig 1 and the pretreatment / electrodeposition jig 100.

  In this state, the vehicle body w is transferred to the pretreatment / electrodeposition process, the vehicle body w is immersed in a treatment liquid in a treatment tank (not shown), and the vehicle body w is subjected to pretreatment / electrodeposition treatment. At this time, since the door d is positioned at a position where the door d is relatively rotated with respect to the vehicle body w, the removal of the treatment liquid from the vehicle body w at the time of leaving the tank is improved, and the treatment liquid leaks out of the treatment tank. Can be reduced.

  Next, the vehicle body w is passed through a drying furnace (not shown) to cure the electrodeposition liquid adhering to the surface of the vehicle body. 30 is attached to the door d. The door side jig 30 is fixed to the door d by inserting the substrate 31 between the inner plate d1 and the outer plate d2 of the door d with the door d opened, and with respect to the female screw member 34 at the lower end of the substrate 31. The bolt member 49 is screwed through the inner plate opening d3 of the inner plate d1. At this time, since the lower surface of the upper end bent portion 31a of the door side jig 30 is in contact with the upper edge of the inner plate d1, the door side jig 30 is stably positioned and fixed to the door d. Furthermore, as shown in FIG. 14 (the drawing in which the outer plate d2 is omitted), the tip of the L-shaped pin 48 of the door side jig 30 is inserted into the hole d5 provided in the reinforcing plate d4 of the inner plate d1. Thus, the door side jig 30 is more stably fixed to the door d.

  When the attachment of the door-side jig 30 to the door d is completed as described above and the door d is rotated in the closing direction, the standing portion 42 of the elastic member 35 of the door-side jig 30 is first moved to the vehicle body-side jig. 10 in contact with the vehicle body side engaging portion 14. Due to the further rotation of the door d, the upright portion 42 that has received the reaction force from the vehicle body side engaging portion 14 is displaced upward with its elasticity and passes over the vehicle body side engaging portion 14, and the door d passes through the door. The inclined portion 41 of the side jig 30 rotates while being in sliding contact with the vehicle body side engaging portion 14, and the rotation is regulated by the stopper portion 39 coming into contact with the vehicle body side engaging portion 14. At this time, the vehicle body side engaging portion 14 is positioned by being engaged with the engaging concave portion 24, that is, by being in contact with the three portions of the stopper portion 39, the locking edge portion 40, and the inclined portion 41. The connection position between the vehicle body side jig 10 and the door side jig 30 is determined, and the door d is held at a constant opening with respect to the vehicle body w. Since the elastic member 35 always acts to urge the vehicle body side engaging portion 14 downward, the vehicle body side jig 10 does not swing upward, that is, away from the vehicle body w.

  The opening degree of the door d held at this time is determined by the length of the biasing portion 13 of the vehicle body side jig 10 or the length of the lower edge portion 38 of the elastic member 35 of the door side jig 30. It is set to an appropriate length. For example, while the vehicle body side jig 10 and the door side jig 30 are used many times, the paint adheres to the surface of the jig and hardens. And when the upright part 42 of the elastic member 35 of the door side jig | tool 30, the inclination part 41, the latching edge part 40, and the stopper part 39 contact | abutted to the vehicle body side engaging part 14 of the vehicle body side jig | tool 10, it hardened | cured. There is a possibility that the paint piece may be peeled off from the surface of the vehicle body side jig 10 or the door side jig 30, and if the paint piece falls on the side sill, the side sill is applied with the paint piece attached. There is a risk of applying. On the other hand, for example, the length of the biasing portion 13 of the vehicle body side jig 10 is set to a length extending to a vehicle interior position avoiding a position directly above a side sill (not shown) of the vehicle body w, thereby providing a paint piece. Can be prevented from falling on the side sill. In this case, the peeled paint piece falls on the floor of the vehicle body w which does not cause a problem in appearance quality.

  The subsequent opening / closing operation of the door d is performed by a robot, and as shown in FIG. 15, it is performed by a painting robot r in this embodiment. The painting robot r is, for example, an articulated arm robot, and a coating gun t is provided at the tip arm portion r1. In using the coating robot r, for example, an attracting member r2 that is magnetized when energized is disposed in the arm part r1. For example, in the indoor painting process, after the arm operation of the painting robot r, the magnetized adsorbing member r2 is applied to the inner plate d1 through the glass opening of the door d and both are magnetized, and the arm operation of the painting robot r is performed. To rotate the door d in the opening direction. After the upright portion 42 of the elastic member 35 of the door side jig 30 is displaced upward with its elasticity by the reaction force received from the vehicle body side engaging portion 14 via the inclined portion 41, the elastic member 35 is moved to the vehicle body side jig 10. Is separated from the vehicle body side engaging portion 14.

  After largely opening the door d, the suction member r2 is turned off to separate the coating robot r from the door d, and thereafter the interior of the room is painted with the coating gun t. When the indoor coating is completed, the magnetized attracting member r2 is magnetically attached to the inner plate d1 of the door d, and the door d is rotated in the closing direction by the arm operation of the painting robot r. The engaging action of the vehicle body side jig 10 and the door side jig 30 at this time is as described above. That is, the upright portion 42 that has received the reaction force from the vehicle body side engaging portion 14 is displaced upward with its elasticity, passes over the vehicle body side engaging portion 14, and the door d is inclined by the door side jig 30. The portion 41 rotates while slidingly contacting the vehicle body side engaging portion 14, and the rotation is regulated by the stopper portion 39 coming into contact with the vehicle body side engaging portion 14. When the vehicle body side engaging portion 14 is engaged with the engagement recess 24, the connection position of the vehicle body side jig 10 and the door side jig 30 is determined, and the door d has a constant opening with respect to the vehicle body w. Retained. In this state, the vehicle body w is conveyed to the next process, for example.

  In the present embodiment, the vehicle body side engaging portion 14 of the vehicle body side jig 10 is a rod-shaped member, and the door side engaging portion of the door side jig 30 is an elastic member 35 that engages with the rod-shaped member. The door side engaging portion of the side jig 30 may be a rod-shaped member, and the vehicle body side engaging portion 14 of the vehicle body side jig 10 may be an elastic member 35 that engages with the rod-shaped member. In the latter case, in order to prevent the upward force from being applied to the vehicle body side jig 10 by the reaction force received by the elastic member 35 from the door side engaging portion, that is, to prevent the vehicle body side jig 10 from being detached, The elastic member 35 needs to be urged downward. However, even in this case, for example, it is sufficient to use the elastic member 35 shown in FIG.

  As described above, if at least one of the vehicle body side engaging portion 14 of the vehicle body side jig 10 and the door side engaging portion of the door side jig 30 is formed as the elastic member 35 made of a spring wire, the door jig 1 The engagement / disengagement structure between the door d and the vehicle body w via the door is an engagement / disengagement structure using elastic deformation of the elastic member 35 based on the rotational operation force of the door d. Therefore, for example, when engaging / disengaging with a robot, the robot operation is simply to rotate the door d, which is a large component, without causing the robot to touch the door jig 1 made of fine components. Good. Accordingly, the door d can be engaged and disengaged with respect to the vehicle body w using the robot, without detecting the position of the door jig 1, the gripping mechanism, and the complicated robot teaching work. In the present invention, since the elasticity of the elastic member 35 is used as the engagement / disengagement structure, the impact force during engagement / disengagement is also buffered.

  The vehicle body side jig 10 includes a claw portion 12 (first engagement portion 22) that engages with an opening (garnish hole w2) formed in the center pillar w1 of the vehicle body w, and a vertical edge of the center pillar w1. Eaves hook-shaped member 17 (second engaging portion 23) that engages with the door opening flange portion w3 formed on the door, and is fixed to the vehicle body w via the hook claw portion 12 and the eaves hook-shaped member 17 Further, the vehicle body side engaging portion 14 is formed as a rod-like member located on the inner side of the eaves-like member 17, and the door side jig 30 is inserted between the inner plate d1 and the outer plate d2 of the door d. A substrate 31 is provided which is fixed to the door d and supports the elastic member 35 on the inner plate d1 side of the door d. The elastic member 35 of the door side jig 30 engages with the vehicle body as the door d rotates in the closing direction. After being elastically deformed by the reaction force from the portion 14, it engages with the peripheral surface of the vehicle body side engaging portion 14. If configured, the structure of the body-side jig 10 and the door-side member 30 is simplified, rapid perform the mounting of the door-side jig 30 for attaching and doors d of the body-side jig 10 relative to the vehicle body w.

  Further, as the elastic member 35 of the door-side jig 30, an upright portion 42 that first contacts the vehicle body side engaging portion 14 and elastically deforms when the door d rotates in the closing direction, and after the upright portion 42 has passed. If it has the structure which has the engaging recessed part 24 engaged with the surrounding surface of the vehicle body side engaging part 14, both the elastic function of the elastic member 35 and an engaging function can be improved.

  Further, in the elastic member 35 of the door-side jig 30, if the first loop portion 37 and the second loop portion 44 that are coiled are formed on the base end side and the one end side, respectively, in order to increase the elasticity of the standing portion 42, the vehicle body Engagement / disengagement of the side jig 10 and the door side jig 30 is smooth, and the rotational operation force of the door d is small.

DESCRIPTION OF SYMBOLS 1 Door jig 10 Car body side jig 12 Claw part (1st engaging part)
14 Car body side engaging portion 17 Eaves-like member (second engaging portion)
22 first engagement portion 23 second engagement portion 24 engagement recess 30 door side jig 31 substrate 35 elastic member (door side engagement portion)
37 1st loop part (loop part on the base end side)
42 Standing portion 44 Second loop portion (loop portion on the tip side)
w Car body w1 Center pillar w2 Garnish hole d Door d1 Inner plate d2 Outer plate

Claims (4)

It consists of a vehicle body side jig attached to the vehicle body and a door side jig attached to the door, and engages the vehicle body side engaging portion formed on the vehicle body side jig and the door side engaging portion formed on the door side jig. A door jig that holds the door at a predetermined opening with respect to the vehicle body,
At least one of the said vehicle body side engaging part and the said door side engaging part is formed as an elastic member which consists of spring wires, The door jig characterized by the above-mentioned. The vehicle body side jig includes a hook-shaped first engagement portion that engages with an opening formed in a center pillar of the vehicle body, and a groove that engages with a door opening flange portion formed on a vertical edge of the center pillar. A second engaging portion that is shaped like a vehicle, and the vehicle body side engaging portion is more vehicle-mounted than the second engaging portion when fixed to the vehicle body via the first engaging portion and the second engaging portion. Formed as a rod-shaped member located inside,
The door side jig is inserted between an inner plate and an outer plate of the door and fixed to the door, and includes a substrate that supports the elastic member on the inner plate side of the door,
The elastic member of the door side jig is engaged with the peripheral surface of the vehicle body side engaging portion after being elastically deformed by a reaction force from the vehicle body side engaging portion accompanying rotation of the door in the closing direction. The door jig according to claim 1. The elastic member of the door side jig is
An upright portion that first elastically deforms by contacting the vehicle body side engaging portion when the door rotates in the closing direction;
An engagement recess that engages with the circumferential surface of the vehicle body side engagement portion after the upright portion has passed,
The door jig according to claim 2, further comprising:   4. The door according to claim 3, wherein the elastic member of the door side jig is formed with a coiled loop portion on each of a proximal end side and one end side in order to increase elasticity of the upright portion. jig.

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