JP2015203601A - position measurement jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a position measurement jig which can repeatedly measure an assembling position of a functional component to be assembled to a vehicle body, in a state of being mounted on the functional component, in adjusting the assembling position.SOLUTION: A position measurement jig 1 includes: a jig body 2; a holding section which maintains the jig body 2 fixed to a slope component; a reference section 24 which comes into contact with a component reference surface 621 in the slope component; a measurement head 3 for measuring the amount of projection X from the reference section 24; and biasing means 31 for biasing the measurement head 3 in a direction of protruding from the reference section 24. The position measurement jig 1 measures a distance S between a body reference surface 52 and the component reference surface 621, according to the amount of projection X of the measurement head 3 when the reference section 24 is brought into contact with the component reference surface 621 and the measurement head 3 is brought into contact with the body reference surface 52 of a vehicle body 5.

Description

  The present invention relates to a position measuring jig for measuring an assembly position of a functional component with respect to an automobile body.

A weather strip for sealing a gap with a door closed by the body opening is provided in the body opening of the automobile body. And in order to manage appropriately the amount of crushing of a weatherstrip, measuring the amount of crevice between a car body and a door using a crevice measuring jig etc. is performed.
For example, Patent Document 1 discloses a gap measuring jig having a fixed piece that can be fixed to a body opening and a moving piece that can change a fixing position to the fixed piece. Then, the amount of gap between the body opening and the door member is measured based on the amount of deformation generated in the plastic member of the moving piece.

  Also, for example, in Patent Document 2, a displacement amount measuring jig comprising a displacement amount measuring means for measuring a moving displacement amount of a spindle, an arm that is cantilevered by the spindle, and a measuring element that comes into contact with the object to be measured. Is disclosed. According to this displacement amount measuring jig, it is possible to accurately measure the dimensions of a workpiece having a narrow opening or a deep opening.

JP 2013-178183 A JP 2009-300301 A

  However, the conventional gap measuring jig disclosed in Patent Document 1 is used by being attached to the body opening of the automobile body. Further, this gap measuring jig measures the gap amount in accordance with the plastic deformation amount of the plastic member of the moving piece, and once used, it cannot be used repeatedly unless the plastic member is replaced. Further, it is not used for assembling functional parts that can be disposed from the inside of the automobile body to the outside of the automobile body through the body opening. Further, the displacement amount measuring jig disclosed in Patent Document 2 is not used for assembling the functional parts as well as the gap measuring jig.

  The present invention has been made in view of such a background, and when adjusting the assembly position of the functional component with respect to the automobile body, the assembly position of the functional component is repeatedly measured while being attached to the functional component. It was obtained in an attempt to provide a position measuring jig capable of

One aspect of the present invention is a position measurement jig for measuring an assembly position of a functional component that can be disposed outside from the inside of an automobile body via the body opening, with respect to the automobile body,
A jig body attached to the functional component;
A holding portion provided in the jig body for maintaining the state where the jig body is attached to the functional component;
A reference portion provided on the jig main body, abutting on a component reference surface of the functional component, and determining a reference position of the jig main body with respect to the functional component;
A slidably provided on the jig body, and a measuring element capable of repeatedly changing the amount of protrusion from the reference portion,
The body reference surface and the component reference surface according to the protruding amount of the probe when the reference portion is in contact with the component reference surface and the probe is in contact with the body reference surface of the automobile body. The position measuring jig is characterized in that it can measure the distance between the two.

The position measuring jig is used to measure the assembly position of the functional component with respect to the automobile body. The position measurement jig can repeatedly measure the assembly position when adjusting the assembly position of the functional component.
When measuring the assembly position of a functional component, the position measurement jig is attached to the functional component with the reference portion in contact with the component reference surface of the functional component, and is attached to the functional component by the holding portion. Maintained. And when a functional component is arrange | positioned in the assembly | attachment position in a motor vehicle body, the measuring element of a position measuring jig contacts the body reference plane in a motor vehicle body. At this time, the protruding amount of the probe relative to the reference portion is reduced. Then, the distance between the body reference surface and the component reference surface is measured according to the protruding amount of the measuring element.

  In addition, when the measured interval is not within the target interval, the assembly position of the functional component with respect to the automobile body is adjusted. At this time, the state where the position measuring jig is attached to the functional component is maintained by the holding portion. Therefore, the assembly position of the functional component with respect to the automobile body can be adjusted with the position measurement jig attached to the functional component.

  Further, the measuring element is configured to be able to repeatedly change the protruding amount from the reference portion, and can quickly return to the original position after leaving the body reference surface. Therefore, after adjusting the assembly position of the functional component, when the functional component is placed at the assembly position in the automobile body, the probe is brought into contact with the body reference surface again, and the amount of protrusion of the probe is determined. Thus, the distance between the body reference surface and the component reference surface can be measured.

Therefore, according to the position measuring jig, when adjusting the assembly position of the functional component with respect to the automobile body, the assembly position of the functional component can be repeatedly measured in the state of being attached to the functional component. .
The reference position of the jig main body with respect to the functional component determined by the reference portion is the position of the jig main body determined when the reference portion contacts the component reference surface of the functional component. It is a position for specifying the positional relationship between the functional component and the jig body.

Explanatory drawing which shows the body opening part concerning an Example in the state seen from back. BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows the slope part assembled | attached to the body opening part of a motor vehicle body, and a motor vehicle body concerning an Example from the side. Explanatory drawing which shows the state which developed the slope component in FIG. 2 concerning the Example in the state seen from the side. The perspective view which shows the position measurement jig | tool concerning an Example. Explanatory drawing shown in the state which looked at the position measuring jig concerning an Example from the side. Explanatory drawing shown in the state which looked at the position measurement jig | tool concerning an Example from upper direction. Explanatory drawing which expands and shows a part of body opening part of a motor vehicle body and a part of slope components assembled | attached to the motor vehicle body concerning an Example in the state seen from back. Explanatory drawing which shows the state which measures the space | interval of the body reference plane of a motor vehicle body, and the component reference plane of a slope component from the side by the position measurement jig | tool concerning an Example.

A preferred embodiment of the position measurement jig described above will be described.
In the position measuring jig, the functional component is in contact with a door disposed in the body opening in a state of being accommodated in a vehicle compartment of the automobile body, and seals a gap between the door and the door. The weather strip may be provided, and the crushing amount of the weather strip may be detected by measuring the distance between the body reference surface and the component reference surface.
In this case, by using the position measuring jig, it is possible to easily adjust the crushing amount of the weather strip provided on the functional component.

The functional component is housed in a vehicle compartment of the automobile body so as to face the body opening provided in a rear portion of the automobile body, while being provided in a horizontal direction provided at a lower end portion of the body opening. A slope part that rotates around a pivot shaft extending to the outside of the automobile body from the body opening, and a part of the rear bumper is provided on the slope part. The component reference surface may be formed on a bracket for attaching the rear bumper.
In this case, it is possible to easily adjust the assembly position of the slope component with respect to the automobile body. In addition, when the slope component is stored in the automobile body, the amount of crushing of the weather strip provided on the slope component can be easily adjusted.

The holding portion is in contact with a component surface that is bent with respect to the component reference surface. The contact surface is formed on a side surface of the jig body, and the side opposite to the side surface on which the corresponding contact surface is formed. And a rotation locking claw that is provided on the side surface of the jig body so as to be rotatable with respect to the jig main body and receives the biasing force of a spring and is locked to the functional component.
In this case, the reference position of the jig body of the position measuring jig with respect to the functional component can be determined as accurately as possible while the reference portion is in contact with the component reference surface.

The jig body is rotatably provided with a scale rotating body that is engaged with the measuring element and whose rotation amount is determined according to the protruding amount of the measuring element. A scale indicating that the distance between the body reference surface and the component reference surface is within an allowable range may be provided on the outer periphery.
In this case, it is possible to detect whether the interval between the body reference plane and the component reference plane is within an allowable range by visually observing the scale on the scale rotating body. Therefore, it is possible to easily measure and adjust the assembly position of the functional component with respect to the automobile body.

Below, the Example concerning a position measuring jig is described with reference to drawings.
As shown in FIGS. 1 to 3, the position measuring jig 1 of the present example includes a slope component 6 as a functional component that can be disposed from the inside of the automobile body 5 through the body opening 51. Used to measure the assembly position 501 with respect to the automobile body 5.
As shown in FIGS. 4 to 6, the position measuring jig 1 includes a jig body 2, a holding part 21, a reference part 24, a measuring element 3, and an urging means 31. The jig body 2 is attached to the slope component 6. The holding part 21 is provided in the jig body 2 so as to be rotatable, and is a part that maintains the state where the jig body 2 is attached to the slope component 6. The reference portion 24 is provided in the jig body 2 and is a portion for contacting the component reference surface 621 of the slope component 6 and determining the reference position of the jig body 2 with respect to the slope component 6.

The measuring element 3 is slidably provided on the jig body 2 and can repeatedly change the protrusion amount X from the reference portion 24. The biasing means 31 is provided on the probe 3 and biases the probe 3 in a direction protruding from the reference portion 24.
In the position measuring jig 1, the reference portion 24 is brought into contact with the component reference surface 621, and the protruding portion X of the measuring piece 3 when the measuring piece 3 is brought into contact with the body reference surface 52 in the automobile body 5, The distance S between the body reference surface 52 and the component reference surface 621 can be measured.

Hereinafter, the position measuring jig 1 of this example will be described in detail with reference to FIGS.
The position measuring jig 1 is used in a state where it is attached to the slope component 6, and the operator reads a scale 321 described later on the position measuring jig 1, whereby the distance S between the body reference surface 52 and the component reference surface 621. Is used to detect if is within an acceptable range.
As shown in FIG. 3, the slope component 6 allows a wheelchair or the like to travel between the vehicle body 5 and the ground surface G, and the wheelchair or the like can be loaded and unloaded from the vehicle body 5 via the body opening 51. It is to make. As shown in FIG. 2, the slope component 6 is stored in the vehicle interior of the vehicle body 5 in the storage state 601 so as to face the body opening 51 provided in the rear portion of the vehicle body 5. Further, as shown in FIG. 3, the slope component 6 rotates around a rotation support shaft 61 extending in the horizontal direction provided at the lower end portion of the body opening 51 in the unfolded state 602, so that the body opening The part 51 is disposed outside the automobile body 5.

  As shown in FIGS. 1, 2, and 7, a part of the body opening 51 provided in the rear portion of the automobile body 5 is formed by the slope component 6. Weather strips 54 and 64 for sealing the gap between the door 7 and the peripheral edge of the body opening 51 and the slope component 6 in the automobile body 5 are elastically deformed by contacting the door 7. . The weather strip 64 in the slope component 6 contacts the door 7 and seals the gap with the door 7 when the slope component 6 is in the housed state 601. The position measuring jig 1 of this example is configured to detect the crushing amount of the weather strip 64 by measuring the distance S between the body reference surface 52 and the component reference surface 621 (FIGS. 5 and 6). reference).

  As shown in FIG. 8, the slope component 6 is provided with a hook portion 63 as a locked portion that is locked by a striker 53 as a component locking portion provided in the automobile body 5. The hook portion 63 is configured to be maintained in a state of being locked to the striker 53 under the force of a spring (not shown). The striker 53 is provided at each of the left and right positions of the automobile body 5, and the hook portion 63 is provided at each of the left and right positions of the slope component 6.

The assembly position 501 of the slope component 6 with respect to the automobile body 5 is determined by the hook portion 63 being locked to the striker 53. The assembly position 501 of the slope component 6 with respect to the automobile body 5 is adjusted by slightly changing the position where the striker 53 is provided on the automobile body 5.
As shown in FIG. 8, the body reference surface 52 in the automobile body 5 is formed in the vicinity of the position where the striker 53 is provided. A component reference surface 621 of the slope component 6 is formed on a bracket 62 for attaching the rear bumper central portion 65 (see FIG. 3) to the slope component 6.

  As shown in FIGS. 1 to 3, a part of the rear bumper provided in the rear portion of the automobile body 5 is provided in the slope component 6. The slope component 6 is provided with a central portion 65 of the rear bumper. The center part 65 of the rear bumper in the slope component 6 is connected to both side parts 55 of the rear bumper in the automobile body 5 when in the housed state 601. When adjusting the assembly position 501 of the slope component 6 with respect to the automobile body 5, the central portion 65 of the rear bumper is removed from the slope component 6. 1 and 2 show a state in which the central portion 65 of the rear bumper is removed.

  As shown in FIGS. 5, 6, and 8, the reference portion 24 provided on the jig body 2 of the position measuring jig 1 is formed as a reference surface 241 that is the front end face of the jig body 2. The reference surface 241 is provided with positioning pins 242 for determining the mounting position of the jig body 2 with respect to the slope component 6. An insertion hole 622 into which the positioning pin 242 is inserted is provided in a portion of the bracket 62 of the slope component 6 where the component reference surface 621 is formed.

  As shown in FIGS. 4 to 6, the holding portion 21 of the position measuring jig 1 includes a contact surface 25 formed on the side surface of the jig body 2 and a side opposite to the side surface on which the contact surface 25 is formed. It has the rotation latching claw 22 provided in the side surface so that rotation with respect to the jig | tool main body 2 was possible. The contact surface 25 is in contact with a component surface 623 that is bent with respect to the component reference surface 621 in the bracket 62. The rotation locking claw 22 is configured to rotate around the rotation fulcrum 220 under the urging force of the spring 23 and to be locked to a part 624 of the bracket 62.

  When the position measuring jig 1 is attached to the slope component 6, the locking portion 221 is locked to the bracket 62. There are provided a guide part 222 that guides in such a manner and a lock release lever 223 for releasing the lock state of the lock part 221. The spring 23 is configured by a torsion coil spring that applies an elastic recovery force in a direction in which the locking state of the locking portion 221 to the bracket 62 is maintained.

  As shown in FIGS. 5 and 6, the probe 3 of the position measuring jig 1 is formed in an axial shape. The biasing means 31 of the position measuring jig 1 is a coil spring and is disposed on the outer periphery of the shaft-shaped measuring element 3. The measuring element 3 urged by the urging means 31 is received by the portion of the jig body 2 and is in the original position where it protrudes most from the jig body 2 in the natural state. When the tip of the probe 3 comes into contact with the body reference surface 52, the urging means 31 is elastically deformed, and the protrusion amount X of the probe 3 from the jig body 2 is reduced.

  The jig body 2 is rotatably provided with a scale rotating body 32 that is engaged with the measuring element 3 and whose rotation amount is determined according to the protruding amount X of the measuring element 3. A scale 321 is provided on the outer periphery of the scale rotating body 32 to indicate that the interval S between the body reference surface 52 and the component reference surface 621 is within an allowable range. The scale 321 has an allowable range of + several mm on the one rotation side and the other rotation around 0 (zero) indicating that the distance S between the body reference surface 52 and the component reference surface 621 is a target value. An allowable range of -several mm can be determined and provided on the side. The permissible range can be set as appropriate, and can be, for example, a range of ± 1.5 mm.

As shown in FIG. 5, the measuring element 3 is provided with a rack 33 in which a plurality of tooth surfaces are arranged in a straight line. The scale rotating body 32 is provided with a pinion gear 34 that meshes with the rack 33. The diameter of the scale rotating body 32 is larger than the diameter of the pinion gear 34. The diameter of the scale rotating body 32 in this example is four times the diameter of the pinion gear 34. The diameter of the scale rotary body 32 can be 2 to 8 times the diameter of the pinion gear 34.
When the probe 3 slides, the pinion gear 34 meshing with the probe 3 rotates, and the scale rotating body 32 rotates together with the pinion gear 34. And since the diameter of the scale rotary body 32 is larger than the diameter of the pinion gear 34, the magnification of the scale 321 provided in the scale rotary body 32 becomes large, and the operator can easily see the scale 321.

Next, a method for measuring the distance S between the body reference surface 52 and the component reference surface 621 using the position measuring jig 1 and the operation and effect of this example will be described.
After the slope component 6 is assembled to the automobile body 5, the operator attaches the position measuring jig 1 to the slope component 6. At this time, the operator inserts the positioning pin 242 of the reference portion 24 into the insertion hole 622 in the bracket 62 of the slope component 6 and brings the reference surface 241 of the reference portion 24 into contact with the component reference surface 621 of the bracket 62. The contact surface 25 of the jig body 2 is brought into contact with the component surface 623 of the bracket 62. When this contact is made, the locking portion 221 of the rotation locking claw 22 is guided to the part 624 of the bracket 62 by the guide portion 222 of the holding portion 21, and the locking portion 221 of the rotation locking claw 22 is the bracket. 62 is locked. Thereby, the state where the jig body 2 of the position measuring jig 1 is attached to the bracket 62 is maintained.

  Next, the worker rotates the slope component 6 around the rotation support shaft 61 and locks the hook portion 63 of the slope component 6 to the striker 53 of the automobile body 5. When the hook portion 63 is locked to the striker 53, the slope component 6 is disposed at the assembly position 501 in the automobile body 5. At this time, the tip of the probe 3 of the position measuring jig 1 comes into contact with the body reference surface 52 of the automobile body 5, and the urging means 31 is elastically deformed. Then, the urging force by the urging means 31 is overcome, and the protruding amount X of the probe 3 with respect to the jig body 2 is reduced. Thus, the distance S between the body reference surface 52 and the component reference surface 621 is measured according to the protrusion amount X of the probe 3 (according to the amount by which the protrusion amount X of the probe 3 is reduced).

  Further, when the protruding amount X of the measuring element 3 is reduced, the scale rotating body 32 rotates via the rack 33 and the pinion gear 34. Then, the operator visually checks whether the position indicated by the scale 321 in the scale rotating body 32 is within an allowable range of ± several millimeters, so that the distance S between the body reference surface 52 and the component reference surface 621 is a target. Detect if it is within the range of the interval.

  Next, when the measured interval S is not within the allowable range as the target interval S, the assembly position 501 of the slope component 6 with respect to the automobile body 5 is adjusted. The adjustment of the assembly position 501 is performed by slightly changing the position where the striker 53 is provided in the automobile body 5. When performing this adjustment, the holding unit 21 maintains the state where the position measuring jig 1 is attached to the slope component 6. Therefore, the assembly position 501 of the slope component 6 with respect to the automobile body 5 can be adjusted in a state where the position measuring jig 1 is attached to the slope component 6.

  Further, the measuring element 3 is always urged in a protruding direction by the urging means 31, and immediately returns to the original position after leaving the body reference surface 52. Then, the operator shifts the position of the striker 53 in the automobile body 5 and adjusts the assembly position 501 of the slope component 6. Thereafter, the operator again locks the hook portion 63 of the slope component 6 to the striker 53 and arranges the slope component 6 at the assembly position 501 in the automobile body 5. Then, the measuring element 3 is brought into contact with the body reference surface 52 again, and the operator visually checks whether the position indicated by the scale 321 on the scale rotating body 32 is within an allowable range of ± several mm. It is measured whether the distance S between the part 52 and the component reference surface 621 is within an allowable range.

  Thus, according to the position measuring jig 1 of this example, when the assembly position 501 of the slope component 6 with respect to the automobile body 5 is adjusted, the set of the slope component 6 remains attached to the slope component 6. The attached position 501 can be repeatedly measured.

DESCRIPTION OF SYMBOLS 1 Position measuring jig 2 Jig body 21 Holding part 22 Rotation latching claw 23 Spring 24 Reference part 241 Reference surface 25 Contact surface 3 Measuring element 31 Energizing means 32 Scale rotary body 321 Scale 5 Automobile body 501 Assembly position 51 Body Opening 52 Body Reference Surface 54 Weather Strip 55 Both Sides of Rear Bumper 6 Slope Parts (Functional Parts)
61 Rotating support shaft 62 Bracket 621 Component reference surface 623 Component surface 64 Weather strip 65 Central portion of rear bumper 7 Door

Claims (5)

A position measuring jig for measuring an assembly position of the functional component that can be disposed outside from the inside of the automobile body via the body opening, with respect to the automobile body,
A jig body attached to the functional component;
A holding portion provided in the jig body for maintaining the state where the jig body is attached to the functional component;
A reference portion provided on the jig main body, abutting on a component reference surface of the functional component, and determining a reference position of the jig main body with respect to the functional component;
A slidably provided on the jig body, and a measuring element capable of repeatedly changing the amount of protrusion from the reference portion,
The body reference surface and the component reference surface according to the protruding amount of the probe when the reference portion is in contact with the component reference surface and the probe is in contact with the body reference surface of the automobile body. A position measuring jig characterized by being able to measure the interval between The functional component is provided with a weather strip for contacting a door disposed in the body opening and sealing a gap with the door in a state of being accommodated in a passenger compartment of the automobile body. ,
The position measuring jig according to claim 1, wherein a crushing amount of the weather strip is detected by measuring a distance between the body reference surface and the component reference surface. The functional component is accommodated in a vehicle compartment of the automobile body so as to face the body opening provided in a rear portion of the automobile body, and extends in a horizontal direction provided in a lower end portion of the body opening. It is a slope component that rotates around a rotation support shaft and is arranged outside the automobile body from the body opening,
The slope part is provided with a part of the rear bumper,
The position measuring jig according to claim 1, wherein the component reference surface is formed on a bracket for attaching the rear bumper.   The holding portion is in contact with a component surface that is bent with respect to the component reference surface, and a contact surface formed on a side surface of the jig body, and a side surface opposite to the side surface on which the corresponding contact surface is formed. And a rotation locking claw which is provided so as to be rotatable with respect to the jig main body and receives the urging force of a spring to be locked to the functional component. 4. The position measuring jig according to any one of 3 above. The jig body is rotatably provided with a scale rotating body that is engaged with the measuring element and whose rotation amount is determined according to the protruding amount of the measuring element.
The scale which shows that the space | interval of the said body reference plane and the said component reference plane exists in a tolerance | permissible_range is provided in the outer periphery of this scale rotary body. The position measuring jig according to the item.

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