JPH076981Y2 - Device for shaping the roundness of the wheel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for shaping the roundness of a wheel,
Particularly, the present invention relates to a shaping device for further improving the roundness of a wheel used for a wheel of a bicycle or a motorcycle.

[Conventional technology and its problems] The roundness of the wheels of bicycles, motorcycles, etc.
It greatly affects the driving stability. Conventionally, the roundness of the wheel is adjusted by adjusting the degree of tightening of the spook of the wheel, but it requires considerably skillful technology to adjust the degree of tightening of the spook, and the efficiency is poor. Therefore, it is not suitable for mass production. Therefore, it is desirable for a trader to have a device for shaping the roundness of a wheel that is easy to operate and highly efficient.

SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, it is an object of the present invention to provide a device for shaping the roundness of a wheel that is easy to operate and highly efficient.

[Means for Solving the Problems] In order to achieve the above-mentioned object of the present invention, a device for shaping the circularity of a wheel according to the present invention clamps the wheel from the outside of the entire circumference of the wheel while pressing the wheel. A sandwiching mechanism composed of three arcuate sandwiching jaws; intimately contacting the inner peripheral surface of the wheel and applying a compressive force to the inner peripheral surface of the wheel while rotating along the inner peripheral surface of the wheel Three rollers, three L-shaped roller support seats that respectively support the three rollers, a rotating disk seat that movably supports the three L-shaped roller support seats in the radial direction, and a V belt. A rotation mechanism including a motor for rotating the rotating disk seat through the outer surface of the three L-shaped roller support seats so as to press the three rollers in close contact with the inner peripheral surface of the wheel. Press the L-shaped roller support seat along And a compression mechanism comprising a center shaft having an inverted conical head capable of being pressed, and a pneumatic cylinder having a piston rod connected to the center shaft for vertically moving the center shaft. Characterize.

[Operation] According to the above-described configuration of the present invention, the wheel whose roundness is to be shaped is clamped and fixed while being pressed from the outer circumference of the wheel by the clamping mechanism composed of three circular arc-shaped clamping jaws. Then, next, the pneumatic cylinder of the compression mechanism is operated so as to move downward the central shaft having the inverted conical head connected to the piston rod of the pneumatic cylinder, whereby the three L The outer surface of the die roller support seat is pressed against the tapered surface of the inverted conical head of the center shaft so as to move outward along the radial direction of the rotary disk seat, and , The three rollers press the inner peripheral surface of the wheel so as to be in close contact with the inner peripheral surface of the wheel. Next, by rotating the rotating disk seat in such a state, the three rollers rotate while rotating along the inner peripheral surface of the wheel, and the outer rollers in the radial direction with respect to the inner peripheral surface of the wheel. It is possible to evenly apply a pressing force directed to one side. Therefore, since the wheel does not receive the external pressure from the outer peripheral surface side by the sandwiching mechanism, it also receives the compressive force from the rotating three rollers from the inner peripheral surface side, thereby making the circumference of the wheel rounder. That is, the roundness of the wheel can be shaped.

[Embodiment] An embodiment of an apparatus for shaping the roundness of a wheel according to the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 is a plan view of a device for shaping the roundness of a wheel according to the present invention, in which 1 is a main frame of the device for shaping the roundness of a wheel, the cross section of the main frame 1 being substantially triangular. It has a hexagonal shape. Reference numeral 2 denotes a sandwiching mechanism arranged on the upper surface side of the main body frame 1. The sandwiching mechanism 2 is arranged in a triangular shape of the main body frame 1 and has a three-arc shape like a wheel divided into three equal parts. Comprising the clamping jaws 211, 222, and 233, the arcuate clamping jaws 211 are fixed to the base 210 fixedly installed at the apex angle position on the upper surface side of the main body frame 1, and the arcuate clamping jaws 222 and 223 are respectively blocks. The blocks 22 and 23 are fixed to 22 and 23, and the blocks 22 and 23 are connected to pneumatic cylinders 224 and 234 fixed to bases 220 and 230 fixed to the left and right sides of the body frame 1, respectively. Therefore, the operation of the pneumatic cylinders 224 and 226 causes the arc-shaped clamping jaws 222 and 233 to move.
Can be pressed to move back and forth. It should be noted that when the two circular arc-shaped clamping jaws 222 and 233 are pressed to a predetermined position, the three circular arc-shaped clamping jaws 211, 222 and 233 form exactly one circular ring. The wheel 6 can be sandwiched and fixed while being fitted between the sandwiching mechanisms 2 composed of the arcuate sandwiching jaws 211, 222, 233, and pressing from the outer circumference of the wheel 6 by the sandwiching mechanism 2.

2 and 3, reference numeral 3 denotes a center rod 32 having an inverted conical head 321, and a piston rod 31 which is connected to the center rod 32 and can be interlocked so as to move the center rod 32 up and down.
A compression mechanism 3 comprising a pneumatic cylinder 31 having 1.

Reference numeral 4 is a rotating mechanism, and the rotating mechanism 4 is mainly composed of a disc portion 41, a hollow cylindrical portion 414, and a pulley 42, and is a rotating disc seat 4
0, 3 L-shaped roller support seats 43, and each roller support seat 4
3 rollers 431 rotatably provided at the tip of 3,
The rotary disk seat 40 comprises a motor 45 for rotating the rotary disk seat 40 via a V-belt 451 hung on a pulley 42 of the rotary disk seat 40.

Slots 412 are opened in three symmetrical directions such that the circumference of the disk portion 41 is divided into three equal parts, and guide blocks 411 parallel to the slots 412 are fixedly provided on both sides of each slot 412. Each of the L-shaped roller support seats 43 is a screw set.
The guide block 411 is slidably provided along the inner surface of the guide block 411 that is parallel to the guide block 411. On the other hand, L-shaped roller support seat 43
Spring mounting portions 432 are provided on both sides of the upright portion of each of the three roller springs 434, and three coil springs 434 are used to connect two end portions of the coil springs 434 to each other.
The three L-shaped roller support seats 43 are constantly pulled from the three coil springs 434 so as to converge toward the circle center of the disk portion 41 of the rotary disk seat 40 by being hung over 432, 432.

Further, the hollow cylindrical portion 414 of the rotary disk seat 40 is rotatably erected in the inner hole 11 of the main body frame 1 via the bearing 12, and the pulley is integrally connected to the lower portion of the hollow cylindrical portion 4114.
Since 42 is interlocked with the motor 45 via the V-belt 451, when the motor 45 is rotated, the rotary disk seat 40 is also rotated together.

The central shaft 32 of the compression mechanism 3 has a central hole 41 of the rotary disk seat 40.
A positioning piece 33 is provided near the lower end of the center shaft 32 while being provided so as to pass therethrough. Further, the positioning piece 33
Two upper and lower micro switches 13 and 14 are provided at a predetermined distance on the upper and lower sides of the shaft, and the center shaft 32 is interlocked by a pneumatic cylinder 31 so as to be movable up and down. Up. When the lower microswitches 13, 14 are touched, the pneumatic cylinder 31 is deactivated.

Next, the operation of the device for shaping the roundness of the wheel according to the present invention will be described.

FIG. 2 shows a state before operation. In this state, the positioning piece 33 of the center shaft 32 of the compression mechanism 3 is the upper micro switch.
In contact with 13, the pneumatic cylinder 31 stops, and the outer slope 433 of the three L-shaped roller support seat 43 is in contact with the base of the inverted conical head 321 of the center shaft 32. The roller support seat 43 is in a converged state, that is, three rollers 431, 431,
431 is far away from the three arcuate sandwiching jaws 211, 222, 233.

In this state, first, the wheel 6 whose circularity is to be shaped is brought into contact with the arc-shaped clamping jaw 211 of the clamping mechanism 2 and the pneumatic cylinders 224 and 234 are operated to make the wheel 6 three circular-shaped clamping jaws. It is clamped and fixed while being pressed from the outer circumference by 211, 222, and 233, and then the center shaft 32 having an inverted conical head 321 connected to the piston rod 311 of the pneumatic cylinder 31 is moved downward so as to move. The pneumatic cylinder 31 is operated, whereby the outer slope of the three L-shaped roller support seats 43 is pressed against the taper surface of the inverted conical head 321 of the center shaft 32, whereby the tensile force of the coil spring is increased. While being resisted, it is pushed so as to move outward along the radial direction of the disc portion 41 of the rotating disc seat 40.

On the other hand, when the center shaft 32 is lowered to a predetermined position, the positioning piece 33
When the lower micro switch 14 contacts the lower micro switch 14, the operation of the pneumatic cylinder 31 is stopped. In this case, the three rollers 431 are strongly pressed against the inner peripheral surface of the wheel 6 so as to be in close contact with the inner peripheral surface of the wheel 6.

Further, in such a state (FIG. 4), by turning on the power of the motor 45 and rotating the motor 45, the rotating disc seat 40 is rotated and the three rollers 431 are arranged along the inner peripheral surface of the wheel 6. While being rotated, it is possible to evenly apply a compressive force to the inner peripheral surface of the wheel 6 so as to direct it outward in the radial direction.

Therefore, while the wheel 6 receives the external pressure from the outer peripheral surface side by the sandwiching mechanism 2, it also receives the compressive force by the three rollers 431 rotating from the inner peripheral surface side, thereby making the circumference of the wheel rounder. That is, the roundness of the wheel can be shaped.

[Effect of the Invention] As described above, according to the configuration of the present invention, the roundness of the wheel can be easily shaped, so that the work efficiency is high.

[Brief description of drawings]

FIG. 1 is a plan view of a device for shaping the roundness of a wheel according to the present invention, FIG. 2 is a vertical cross-sectional view taken along line 2-2 of FIG. Exploded perspective view of the mechanism,
FIG. 4 is a vertical cross-sectional view taken along line 2-2 of FIG. 1 (state in which the center axis is in the lower order). 1: Main body frame, 11: Medium hole, 12: Bearing, 13, 14: Micro switch, 2: Clamping mechanism, 22, 23: Block, 210, 220,
230: Base, 211, 222, 233: Arc-shaped clamping jaws, 224,234:
Pinch mechanism pneumatic cylinder, 3: compression mechanism, 31: pneumatic cylinder, 311: cylinder rod, 32: center shaft, 321: inverted conical head, 33: positioning piece, 4: rotating mechanism, 40: rotating disk seat ,
41: Disc part, 42: Pulley, 43: Roller support seat, 431: Roller, 44: Hollow cylindrical part, 45: Motor, 451: V belt, 41
1: Guide block, 412: Slot, 413: Screw set, 43
2: Spring mounting part, 434: Coil spring. 6: Wheel.

Claims (1)

[Scope of utility model registration request] 1. A holding mechanism comprising three arc-shaped holding jaws for holding the wheel while pressing it from the outside of the entire circumference of the wheel; and a holding mechanism in close contact with the inner peripheral surface of the wheel. While rotating along the inner peripheral surface, three rollers that apply a compressive force to the inner peripheral surface of the wheel, three L-shaped roller support seats that respectively support the three rollers, and the three
A rotating disc seat that movably supports the L-shaped roller support seat along the radial direction, and a rotation mechanism that includes a motor that rotates the rotating disc seat via a V-belt; and the three rollers of the wheel. An inner shaft having an inverted conical head that presses the L-shaped roller supporting seat along the outer slope of the three L-shaped roller supporting seats so as to press the inner peripheral surface closely; A device for shaping the roundness of a wheel, which comprises a pneumatic cylinder having a piston rod for connecting and connecting the center shaft up and down.