JP2001108020A - Crimp jig for sticking balance weight of iron - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crimp jig excellent in workability to accurately stick a sticking balance weight of iron to the indicated position of the inner peripheral surface of a wheel. SOLUTION: This crimp jig 20 for a sticking balance weight of iron consists of a mounting plate 1, a wheel receiving plate 2 detachably mounted to the mounting plate 1, a hub hole guide 3 integrally formed on the wheel receiving plate 2, a cylinder 8 fixed to the mounting plate 1, a balance stopper receiving plate 4 mounted to the rod 8a of the cylinder 8, a rubber plate magnet 7 mounted to the outer surface of a balance weight stopper cushion mounted to the surface facing the wheel of the balance stopper receiving plate and a balance weight receiving plate 5 movably supported with respect to the balance stopper receiving plate 4 and energized toward the wheel side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of designating an inner peripheral surface of a wheel for an automobile, for example, an aluminum wheel (hereinafter simply referred to as a wheel), not on a design surface, but on an inner peripheral surface. The present invention relates to a crimping jig for accurately adhering to a position.

[0002]

2. Description of the Related Art It is customary to attach a balance weight to an automobile wheel and a wheel assembled with tires in order to correct a potential dynamic imbalance when the wheel rotates. A conventional lead-bonded balance weight is formed by attaching a double-sided adhesive tape (hereinafter, referred to as a double-sided tape) to a plate-shaped lead weight portion. Since the balance wheel made of lead has extremely low rigidity, it is possible to give the same curvature deformation as the balance weight attaching surface of the wheel by the force of the operator's hand. Therefore, the crimping work of the conventional lead paste balance weight to the wheel
Usually, it is mainly done by the operator's hand, after peeling off the release paper stuck on the double-sided tape, temporarily attaching it to the specified position of the wheel, and then holding the specified pressure for a certain period of time with a crimping jig and bonding I was

[0003]

In recent years, industrial use of heavy metals such as lead has been refrained from consideration for the environment. Also in the balance weight, lead tends to be replaced by other metals, and for example, an iron-made sticking balance weight has been proposed (Japanese Patent Application No. 10-365915).
issue). The iron bonding balance weight of Japanese Patent Application No. 10-365915 has a predetermined weight of 1 or more (for example, 5 g).
The iron individual weights are attached in parallel to one side of a double-sided tape. However, the following problem arises when the pressure bonding of the iron-applied balance weight to the inner peripheral surface of the wheel is manually performed as in the related art. When the total weight of the iron-attached balance weight increases (for example, a balance weight having a total weight of 50 g is manufactured by combining ten individual weights 30 having a weight of 5 g), the length in the direction in which the weights are arranged increases, and the individual weights adjacent to each other increase. Since the weights are connected only with the double-sided tape, there is no rigidity in the longitudinal direction, and the weights become unstable. Therefore, the workability of bonding the balance weight to the inner peripheral surface of the wheel is deteriorated. An object of the present invention is to provide a crimping jig excellent in workability, which is capable of accurately adhering an iron adhering balance weight to a designated position on an inner peripheral surface of a wheel.

[0004]

The present invention to achieve the above object is as follows. (1) A mounting plate, a wheel receiving plate which is in contact with a hub mounting surface of a wheel and is detachably mounted on the mounting plate, a hub hole guide formed integrally with the wheel receiving plate, and fixed to the mounting plate. Cylinder, a balance press receiving plate attached to a rod of the cylinder, a balance weight press cushion attached to a wheel-facing surface of the balance press receiving plate, and a rubber plate attached to an outer surface of the balance weight press cushion. An iron bonding balance weight crimping jig comprising: a magnet; and a balance weight receiving plate movably supported and biased toward the wheel so as to be able to advance and retreat to and from the wheel with respect to the balance press receiving plate.

[0005] In the above-mentioned jig for bonding an iron-attached balance weight, the iron balance weight is placed on a balance weight receiving plate, and is held by a rubber plate magnet to hold the position. Remove the release paper from the double-sided tape of the balance weight. Then, the crimping jig is hung in the wheel, the hub hole guide is inserted into the hub hole, and the crimping jig is rotated around the center of the hub hole to make the center of the balance weight in the longitudinal direction (mark the balance weight in advance). ) Is aligned with the center of the balance weight mounting position of the wheel (marked in advance on the wheel), and the wheel receiving plate lands on the hub mounting surface of the wheel. (However, after the wheel receiving plate lands on the hub mounting surface of the wheel, the longitudinal center of the balance weight may be aligned with the center of the balance weight mounting position of the wheel). Next, the cylinder is operated to move the balance presser receiving plate forward with respect to the wheel. When the balance weight receiving plate movably supported by the balance press receiving plate hits the inner surface of the wheel and retreats relative to the balance press receiving plate, and furthermore, the balance pressing receiving plate is advanced toward the wheel, the balance weight receiving surface The surface of the tape hits the wheel and is pressed against the wheel. As a result, the iron bonding balance weight can be accurately bonded to the specified position on the inner peripheral surface of the wheel. In addition, since it is a crimping operation using a jig, workability is improved compared to the conventional pasting operation that was mainly performed manually, and it is possible to improve the pasting accuracy and save labor. it can.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 4, the iron bonding balance weight 30 in which the crimping jig of the present invention is used for bonding to a wheel,
One or more individual weights 40A having a predetermined weight W are attached in parallel to one surface of a double-sided tape 50, and the other surface of the double-sided tape is attached to the inner peripheral surface of the wheel. As shown in FIG. 6, the place where the balance weight 30 is attached to the wheel is preferably a place where the balance weight 30 is not visible or difficult to see from the outside, and preferably a place where it extends straight in the axial direction. Thus, it is not necessarily the inner peripheral surface of the flange. Release paper is attached to the other surface of the double-sided tape attached to the wheel to protect the adhesive portion. In order to obtain balance weights at finer weight intervals, as individual weights, two types of individual weights having different weights, for example, an individual weight 40A having a weight W and a weight W / n +
An individual weight 40B of W (where n is an integer of 2 or more, for example, 2) may be prepared. FIG. 5 shows the weight W / n.
An example is shown in which one or more individual weights 40A having a weight W are arranged on both sides of one or more individual weights 40B each having a weight equal to the sum of W and W, and attached to the double-sided tape 50. Predetermined weight W
Is desirably the minimum weight among the standard weights of the weight (normally, 5 g to 100 g in 5 g steps).
For example, assuming that the weight W of the individual weight 40A is 5 g, the total weight of the balance weight 30 when only the individual weight 40A having the weight W is combined is an integral multiple of a predetermined weight, that is, a weight interval in increments of 5 g. Weight W of individual weight 40A and one weight W / n + W
The total weight of the balance weights 30 when the individual weights 40B (7.5 g in the case of n = 2) are combined is a weight interval of 2.5 g. As described above, since the weight balance 30 has, for example, a weight interval of 5 g or a weight interval of 2.5 g, the inner peripheral surface of a wheel having various wheel diameters (for example, 12 inches to 18 inches) has In each case, it is possible to attach a balance weight of the required total weight.

As shown in FIGS. 1 to 3, an iron bonding balance weight crimping jig 20 according to an embodiment of the present invention includes a mounting plate 1, a wheel receiving plate 2 detachably mounted on the mounting plate 1, and a wheel. Hub hole guide 3 formed integrally with receiving plate 2, cylinder 8 fixed to mounting plate 1, and balance press receiving plate 4 mounted on rod 8a of cylinder 8.
The balance weight holding cushion 6 attached to the wheel-facing surface of the balance holding plate, the rubber plate magnet 7 attached to the outer surface of the balance weight holding cushion 6, and the balance holding plate 4 Thus, the balance weight receiving plate 5 movably supported and urged toward the wheel side
Consists of

The crimping jig 20 is suspended from the ceiling by a spring balancer suspension bar 11, suspended in the rim (space) of a wheel whose axis is oriented vertically, and the hub hole guide 3 is moved to the wheel 60. Hub hole 70
Fit into. The mounting plate 1 has a cylinder 8
Is mounted, and a mechanical valve 10 is provided on a valve holding plate 9 mounted on the upper surface of the mounting plate 1. Mechanical valve 10 is cylinder 8
For switching the supply of compressed air. An air switch 1 is provided above the mechanical valve 10.
2 are provided. The lower surface of the wheel receiving plate 2 is a surface that contacts the hub mounting surface of the wheel, and forms a wheel hub contact surface. The wheel receiving plate 2 has a structure that can be attached to and detached from the mounting plate 1 with bolts or the like. With this structure, it is possible to replace the wheel receiving plate 2 according to the size of the wheel 60 to which the balance weight is to be attached, the hub diameter, and the like. The hub hole guide 3 is formed to protrude below the wheel hub contact surface of the wheel receiving plate 2, is inserted into the hub hole 70 of the wheel 60, and determines the center of rotation and the radial position of the wheel balance 30 with respect to the wheel 60. I do.

The cylinder 8 is, for example, an air cylinder, and a receiving cylinder 8 'is installed at a position symmetrical in the horizontal direction with the axis of the hub hole guide 3 as the center of symmetry. Installing the air cylinder 8 'at a symmetrical position
This is for receiving the reaction force generated when the cylinder 8 is operated to apply a constant pressure to the wheel. A cylinder different from the cylinder 8 may be used for the cylinder 8 'on the opposite side (reception side) to the air cylinder 8 so as to correspond to two kinds of wheel diameters (for example, 16 inches and 17 inches). . When two types of cylinders are provided, it is possible to perform the work of pressing the balance weights to two types of wheels having different wheel diameters with one jig. The rod 8a of the cylinder 8 is
Is driven in a direction orthogonal to the axis of the rim 8 of the wheel 60.
Forward and backward with respect to the inner surface of 0. Air cylinder 8
Is connected to the mechanical valve 10 via the air hose 13 and the switch 12 of the mechanical valve 10 is turned off.
N, the cylinder rod 8a moves forward and backward with respect to the wheel 60.

The balance press receiving plate 4 has a bottom wall 4a.
And a vertical wall 4b extending vertically from the bottom wall.
Is curved with a curvature similar to that of the balance weight attaching surface of the wheel in plan view. The bottom wall 4a of the balance press receiving plate 4 is provided with at least one protrusion protruding downward, for example, a bolt (including the case of a threaded pin and a nut-like member screwed thereto) (in the example shown in the figure). This shows a case where two projections 14a and 14b are provided). The center of the vertical wall 4b of the balance press receiving plate 4 in the circumferential direction of the wheel is connected to the tip of the rod 8a of the air cylinder 8. When the air cylinder operates and the cylinder rod 8a moves forward, the balance press receiving plate 4 moves forward with respect to the wheel 60. The balance weight holding cushion 6 is made of rubber, for example, and is attached to the wheel-facing surface of the balance holding plate 4. Balance weight holding cushion 6
A rubber plate magnet 7 is attached to the outer surface of the.
The wheel-facing surface of the rubber plate magnet 7 is curved with the same curvature as that of the balance weight attaching surface of the wheel. The magnetic force of the rubber plate magnet 7 is set to be smaller than the adhesive force of the double-sided tape 50 of the balance weight to the wheel.

The balance weight receiving plate 5 is made of, for example, a thin iron plate.
Is slidably mounted in the horizontal direction on the lower surface of the bottom wall 4a. The balance weight receiving plate 5 is provided with, for example, a slit 16. The protrusions 14a and 14b of the balance press receiving plate 4 pass through the slit 16 and support the balance weight receiving plate 5 so as not to drop at the heads of the protrusions 14a and 14b. The balance weight receiving plate 5 is slidable with respect to the balance press receiving plate 4 and is capable of moving forward and backward with respect to the wheel 60. The tip of the balance weight receiving plate 5 on the side facing the wheel 60 is curved at the same curvature as the curvature of the wheel in the circumferential direction of the surface where the balance weight is attached. Alternatively, at least one claw extending diagonally downward is formed (in the illustrated example, a case where two claws 15a and 15b are formed is shown). The pawls 15a and 15b of the balance weight receiving plate 5 are located closer to the center in the wheel radial direction (farther from the wheel rim) than the protrusions 14a and 14b of the balance press receiving plate 4. A rubber band 17, for example, is provided between the projection 14a of the balance press receiving plate 4, the claw 15a of the balance weight receiving plate 5, the projection 14b of the balance press receiving plate 4, and the claw 15b of the balance weight receiving plate 5, respectively. The balance weight receiving plate 5 is urged against the balance press receiving plate 4 toward the inner peripheral surface of the wheel rim. The rubber band 17 may be replaced by another spring, for example, a metal spring.

Next, the operation of the crimping jig for the iron balance weight having the above structure will be described. Prior to the work of attaching the balance weight 30 to the wheel 60, a balance test of the wheel on which the tire is mounted is performed, and based on the test result, the necessary total weight of the balance weight 30 is determined. Is marked on the wheel. Further, a balance weight 30 corresponding to the required total weight is prepared, and the center position in the longitudinal direction (the same direction as the wheel circumferential direction) is marked on the balance weight 30.

Next, with the crimping jig 20 rising from the wheel, the iron bonding balance weight 30 is
The release paper is placed vertically on the balance weight receiving plate 5 with the release paper still attached to the double-sided tape 50, and is attracted to the surface of the rubber plate magnet 7 by magnetic force. Since the magnetic force of the rubber plate magnet 7 is weak, the balance weight 3
0 can be freely moved up and down, up and down, and the center of the balance weight 30 in the longitudinal direction is aligned with the center of the rubber plate magnet 7 in the longitudinal direction (the same direction as the wheel circumferential direction). Next, the release paper is peeled off from the double-sided tape 50 of the balance weight, and the pressure bonding jig 20 is lowered into the wheel 60. Since the balance weight receiving plate 5 is projected so that the front end thereof is closer to the inner peripheral surface of the wheel than the double-sided tape 50, the double-sided tape can be hung down without contacting the inner peripheral surface of the wheel. Can be.

The radial positioning of the balance weight 30 with respect to the wheel is determined by the hub hole guide 3 inserted into the wheel hub hole, and the axial positioning is determined by the surface of the wheel receiving plate 2 against the wheel hub and the balance weight receiver. It is determined by an axial difference k between the plate 5 and the sliding surface. In the circumferential positioning, the jig 20 is rotated by visually confirming the center position of the balance weight 30 marked on the wheel in advance and the longitudinal center position of the balance weight marked on the balance weight 30 in advance. Let it be decided together. Before the wheel receiving plate 2 reaches the hub mounting surface of the wheel 60 and the wheel receiving plate 2 is floating above the hub mounting surface of the wheel, the crimping jig 20 rotates the wheel around the axis of the hub hole 70. The center of the balance weight 30 placed on the crimping jig 20 in the longitudinal direction (the same direction as the wheel circumferential direction) can be aligned with the balance weight mounting position mark of the wheel. However, after the wheel receiving plate 2 lands on the hub mounting surface of the wheel, the center of the balance weight in the longitudinal direction may be aligned with the center position of the balance weight to be attached to the wheel.

After the positioning of the iron bonding balance weight 30 with respect to the wheel is completed, the switch 12 of the mechanical valve 10 is turned on, and the cylinder 8 is operated.
By moving the balance holding plate 4 forward with respect to the wheel 60, the distal end surface of the balance weight receiving plate 5 slidably supported by the balance holding plate 4 hits the inner peripheral surface of the wheel 60. Since the lower surface of the balance weight receiving plate 5 does not contact the upper surface of the inner peripheral surface of the wheel disk portion, the plate can be easily moved in the radial direction of the wheel.

When the cylinder rod 8a advances with respect to the wheel 60, in order to improve the positioning accuracy and the workability, the tip surface of the balance weight receiving plate 5 is moved before the balance weight 30 comes into contact with the wheel 6.
However, since the balance weight receiving plate 5 has a structure in which the balance weight receiving plate 5 is biased toward the wheel side by a rubber band or a spring having a weak rubber band level, when the balance press receiving plate 4 is further advanced by the cylinder 8, The balance weight receiving plate 5 is pushed by the inner peripheral surface of the wheel and retreats relatively to the balance press receiving plate 4. Thus, the balance weight 30 placed on the balance weight receiving plate 5 and adsorbed on the outer peripheral surface of the rubber plate magnet is moved to the rim portion 8 of the wheel 60.
No. 0 is pressed against the inner peripheral surface of the wheel rim portion 80 by abutting against the inner peripheral surface of the wheel rim 80 and further pressing the balance press receiving plate 4. Thereafter, the predetermined pressure of the cylinder 8 is maintained for a certain time,
The balance weight 30 is completely adhered to the inner peripheral surface of the wheel rim portion 80.

Next, the switch of the mechanical valve 10 is turned off (retracted side), and the cylinder 8 is operated to the opposite side of the wheel 60 to retreat the balance press receiving plate 4. Since the magnetic force of the rubber plate magnet 7 adsorbing the balance weight 30 is set to be weaker than the adhesive force of the double-sided tape 50 of the balance weight 30 to the wheel 60, the wheel balance 30 is formed on the inner peripheral surface of the wheel rim portion 80. Only the balance press receiving plate 4 and the balance weight receiving plate 5 are retracted. Thus, the crimping operation of the iron wheel balance weight 30 to the inner peripheral surface of the wheel using the crimping jig 20 is completed, and the crimping jig 20 is connected to the spring balancer suspension bar 1.
1 to be ready for the next operation.

[0018]

According to the first aspect of the present invention, there is provided a pressure bonding jig for an iron-attached balance weight, the iron-attached balance weight is placed on a balance weight receiving plate, and the position is held by being attracted to a rubber plate magnet. The balance weight is positioned on the wheel, the cylinder is actuated, and the balance weight receiving play is advanced to the wheel side. can do. In addition, since it is a crimping operation using a jig, workability is improved compared to the conventional pasting operation that was mainly performed manually, and it is possible to improve the pasting accuracy and save labor. it can.

[Brief description of the drawings]

FIG. 1 is a front view of an iron bonding balance weight crimping jig according to an embodiment of the present invention.

FIG. 2 is a plan view of a crimping jig for an iron bonding balance weight according to an embodiment of the present invention.

FIG. 3 is a side view of an iron bonding balance weight crimping jig according to the embodiment of the present invention.

FIG. 4 is a perspective view of an example of an iron bonding balance weight in which the crimping jig of the embodiment of the present invention is used for bonding to a wheel.

FIG. 5 is a perspective view of another example of an iron bonding balance weight in which the crimping jig of the embodiment of the present invention is used for bonding to a wheel.

FIG. 6 is a plan view of the iron-attached balance weight shown in FIGS. 4 and 5;
It is sectional drawing of the wheel mounted | worn using the crimping jig of this invention Example.

[Explanation of symbols]

 Reference Signs List 1 mounting plate 2 wheel receiving plate 3 hub hole guide 4 balance press receiving plate 5 balance weight receiving plate 6 balance weight press cushion 7 rubber plate magnet 8 cylinder 8a cylinder rod 10 mechanical valve 11 spring balancer suspension bar 12 valve switch 13 air hose 14a, 14b Projection 15a 15b Claw 16 Slit 17 Rubber band 20 Crimp jig 30 Iron balance weight 40A, 40B Individual weight 50 Double-sided tape 60 Wheel 70 Hub hole 80 Rim

Claims (1)

[Claims] 1. A mounting plate, a wheel receiving plate that is in contact with a hub mounting surface of a wheel and is detachably mounted on the mounting plate, a hub hole guide formed integrally with the wheel receiving plate, and the mounting. A cylinder fixed to the plate, a balance press receiving plate mounted on a rod of the cylinder, a balance weight press cushion mounted on a wheel facing surface of the balance press receiving plate, and a balance weight press cushion mounted on an outer surface of the balance weight press cushion. Jig for bonding a steel bonded balance weight, comprising: a rubber plate magnet; and a balance weight receiving plate movably supported and urged toward the wheel so as to be able to advance and retreat to the wheel with respect to the balance press receiving plate. .